Add SGML source for manual page.
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man/jack-keyboard-ref.sgml
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man/jack-keyboard-ref.sgml
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook V4.1//EN">
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<refentry>
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<refmeta>
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<refentrytitle>
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<application>jack-keyboard</application>
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</refentrytitle>
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<manvolnum>1</manvolnum>
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<refmiscinfo>jack-keyboard 2.5</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>
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<application>jack-keyboard</application>
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</refname>
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<refpurpose>
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A virtual keyboard for JACK MIDI
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</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<cmdsynopsis>
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<command>jack-keyboard</command>
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<arg><option>-C</option></arg>
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<arg><option>-G</option></arg>
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<arg><option>-K</option></arg>
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<arg><option>-T</option></arg>
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<arg><option>-V</option></arg>
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<arg><option>-a <replaceable class="parameter">input port</replaceable></option></arg>
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<arg><option>-k</option></arg>
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<arg><option>-r <replaceable class="parameter">rate</replaceable></option></arg>
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<arg><option>-t</option></arg>
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<arg><option>-u</option></arg>
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<arg><option>-c <replaceable class="parameter">channel</replaceable></option></arg>
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<arg><option>-b <replaceable class="parameter">bank</replaceable></option></arg>
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<arg><option>-p <replaceable class="parameter">program</replaceable></option></arg>
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<arg><option>-l <replaceable class="parameter">layout</replaceable></option></arg>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>OPTIONS</title>
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<variablelist>
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<varlistentry>
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<term>-C</term>
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<listitem>
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<para>
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Enable "keyboard cue" - two
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horizontal lines over a part of keyboard; keys under the lower line are mapped
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to the lower row of your PC keyboard; keys under the upper line are mapped
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to the upper row.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>-G</term>
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<listitem>
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<para>
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Disable GUI. It makes <command>jack-keyboard</command> look like it did before version 2.0.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>-K</term>
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<listitem>
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<para>
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Grab the keyboard. This makes <command>jack-keyboard</command> receive keyboard events
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even when it does not have focus. In other words, you can play while mousing in a different
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window.
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</para>
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<para>
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Note: It's not reliable yet. It does not work when some other application keeps
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the keyboard grabbed. It does not work with GNOME. Even when it seems to work,
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some keyboard events may get lost.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>-T</term>
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<listitem>
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<para>
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Toggle titlebar, on which channel/bank/program information is shown.
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With -G option, it disables titlebar; otherwise it enables it.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>-V</term>
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<listitem>
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<para>
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Print version number to standard output and exit.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>-a <replaceable class="parameter">input port</replaceable></term>
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<listitem>
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<para>
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Automatically connect to the named input port. Note that this may cause problems with LASH.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>-k</term>
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<listitem>
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<para>
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Allow connecting to other instances of jack-keyboard (see PIANOLA MODE below).
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Without this option, <command>jack-keyboard</command> will refuse to connect to any
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JACK client whose name starts in "jack-keyboard"; this is to prevent loops.
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Note that it's impossible to connect instance of <command>jack-keyboard</command>
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to itself, even with this option set.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>-r <replaceable class="parameter">rate</replaceable></term>
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<listitem>
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<para>
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Set rate limit to <replaceable class="parameter">rate</replaceable>, in Kbaud. Limit
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defined by the MIDI specification is 31.25. By default this parameter is zero, that
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is, rate limiting is disabled.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>-t</term>
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<listitem>
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<para>
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Send all MIDI messages with zero time offset, making them play as soon
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as they reach the synth. This was the default behavior before version 1.6.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>-u</term>
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<listitem>
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<para>
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By default, <command>jack-keyboard</command> does not send program/bank
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change messages after reconnecting, so the newly connected instrument
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remains at previous settings. This option changes that behaviour.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>-c <replaceable class="parameter">channel</replaceable></term>
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<listitem>
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<para>
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Set initial MIDI channel to <replaceable class="parameter">channel</replaceable>;
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by default it's 1.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>-b <replaceable class="parameter">bank</replaceable></term>
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<listitem>
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<para>
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Set initial MIDI bank to <replaceable class="parameter">bank</replaceable>.
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With this option, <command>jack-keyboard</command> will send the bank/program
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change once, when it connects.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>-p <replaceable class="parameter">program</replaceable></term>
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<listitem>
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<para>
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Set initial MIDI program to <replaceable class="parameter">program</replaceable>.
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With this option, <command>jack-keyboard</command> will send the bank/program
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change once, when it connects.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>-l <replaceable class="parameter">layout</replaceable></term>
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<listitem>
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<para>
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Specify the layout of computer keyboard being used. Valid arguments are QWERTY,
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QWERTZ and AZERTY. Default is QWERTY.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>DESCRIPTION</title>
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<para>
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<command>jack-keyboard</command> is a virtual MIDI keyboard - a program that allows
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you to send JACK MIDI events (play ;-) using your PC keyboard. It's
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somewhat similar to <command>vkeybd</command>, except it uses JACK MIDI instead of
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ALSA, and the default keyboard mapping is much better - it uses the same
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layout as trackers (like Impulse Tracker) did, so you have two and
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half octaves under your fingers.
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</para>
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</refsect1>
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<refsect1>
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<title>KEY BINDINGS</title>
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<para>
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Keyboard mapping is the same as in Impulse Tracker. This is your
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QWERTY keyboard:
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<screen>
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+----+----+ +----+----+----+ +----+----+
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| 2 | 3 | | 5 | 6 | 7 | | 9 | 0 |
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+----+----+----+----+----+----+----+----+----+----+
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| Q | W | E | R | T | Y | U | I | O | P |
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+----+----+----+----+----+----+----+----+----+----+
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| S | D | | G | H | J |
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+----+----+----+----+----+----+----+
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| Z | X | C | V | B | N | M |
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+----+----+----+----+----+----+----+
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</screen>
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And this is MIDI mapping:
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<screen>
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+----+----+ +----+----+----+ +----+----+
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|C#5 |D#5 | |F#5 |G#5 |A#5 | |C#6 |D#6 |
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+----+----+----+----+----+----+----+----+----+----+
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| C5 | D5 | E5 | F5 | G5 | A5 | B5 | C6 | D6 | E6 |
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+----+----+----+----+----+----+----+----+----+----+
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|C#4 |D#4 | |F#4 |G#4 |A#4 |
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+----+----+----+----+----+----+----+
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| C4 | D4 | E4 | F4 | G4 | A4 | B4 |
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+----+----+----+----+----+----+----+
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</screen>
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</para>
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<para>
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Spacebar is a sustain key. Holding it when pressing or releasing key
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will make that key sustained, i.e. Note Off MIDI event won't be sent
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after releasing the key. To release (stop) all the sustained notes,
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press and release spacebar.
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</para>
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<para>
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Holding Shift when pressing note will make it louder (it increases
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velocity). Holding Ctrl will do the opposite. You can change the
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default velocity by moving the Velocity slider. You can change the "high"
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and "low" velocity values by moving the slider while holding Shift
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or Ctrl keys.
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</para>
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<para>Pressing "-" and "+"
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keys on numeric keypad changes the octave your keyboard is mapped to.
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Pressing "*" and "/" on numeric keypad changes
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MIDI program (instrument). Pressing Insert or Delete keys will
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connect <command>jack-keyboard</command> to the next/previous MIDI input port (it will cycle between running
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instances of ghostess, for example). Home and End keys change the MIDI channel.
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Page Up and Page Down keys switch the MIDI bank.
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</para>
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<para>
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Esc works as a panic key - when you press it, all sound stops.
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</para>
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</refsect1>
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<refsect1>
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<title>SETTING CHANNEL/BANK/PROGRAM NUMBER DIRECTLY</title>
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<para>
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To switch directly to a channel, bank or program, enter its number on the numeric
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keypad (it won't be shown in any way) and press Home or End (to change channel),
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Page Up or Page Down (to change bank) or "/" or "*"
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(to change program). For example, to change to program number 123,
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type, on the numeric keypad, "123/", without quotes.
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</para>
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</refsect1>
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<refsect1>
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<title>TITLEBAR</title>
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<para>
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When <option>-G</option> xor <option>-T</option> is given, some informational
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messages in the title bar appear. They are supposed to be self explanatory.
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If you see "bank/program change not sent",
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it means that the bank/program numbers as seen in the title bar were not sent. In other words,
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synth the <command>jack-keyboard</command> is connected to may use different values. This happens
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at startup and after switching between synths (using Insert/Delete keys). To send bank/program
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change at startup, use <option>-b</option> and <option>-p</option> parameters. To automatically
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send bank/program change after reconnect, use the <option>-u</option> option.
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</para>
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</refsect1>
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<refsect1>
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<title>PIANOLA MODE</title>
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<para>
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In addition to the MIDI output port, <command>jack-keyboard</command> also opens MIDI input (listening) port.
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MIDI events going into this port will be passed to the output port unmodified, except for channel number,
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which will be set to the one <command>jack-keyboard</command> is configured to use. Note On and Note Off
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MIDI events will cause visible effect (pressing and releasing) on keys, just like if they were being pressed
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using keyboard or mouse.
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</para>
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<para>
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<command>jack-keyboard</command> will never connect to it's own MIDI input port. It will also refuse
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to connect to any other client whose name begins with "jack-keyboard", unless the "-k" option is given.
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It is, however, possible to connect these ports manually, using <command>jack_connect</command>
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or <command>qjackctl</command>; this may create feedback loop.
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</para>
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</refsect1>
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<refsect1>
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<title>SEE ALSO</title>
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<para>
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<citerefentry><refentrytitle>jackd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>ghostess</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>qjackctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
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</para>
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</refsect1>
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<refsect1>
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<title>BUGS</title>
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<para>
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Key grabbing is unreliable.
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</para>
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<para>
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Many PC keyboards have problems with polyphony. For example, with the one I'm using right now,
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it's impossible to press "c", "v" and "b" at the same time. It's a hardware problem, not the
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software one.
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</para>
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<para>
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The spin widgets used to set channel/bank/program number don't take focus, so the value cannot be entered
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into them in the usual way. It's because <command>jack-keyboard</command> already uses numeric keys
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for different purposes. You can still directly enter channel/bank/program in a way described above.
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</para>
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</refsect1>
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</refentry>
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Reference in New Issue
Block a user