awk columnwise adjacent match checking program

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jack-keyboard

JACK-KEYBOARD(1)														  JACK-KEYBOARD(1)

NAME

       jack-keyboard - A virtual keyboard for JACK MIDI

SYNOPSIS

       jack-keyboard [ -C ] [ -G ] [ -K ] [ -T ] [ -V ] [ -a input port ] [ -k ] [ -r rate ] [ -t ] [ -u ] [ -c channel ] [ -b bank ] [ -p program
       ] [ -l layout ]

OPTIONS

       -C     Enable "keyboard cue" - two horizontal lines over a part of keyboard; keys under the lower line are mapped to the lower row of  your
	      PC keyboard; keys under the upper line are mapped to the upper row.

       -G     Disable GUI.  It makes jack-keyboard look like it did before version 2.0.

       -K     Grab the keyboard.  This makes jack-keyboard receive keyboard events even when it does not have focus.  In other words, you can play
	      while mousing in a different window.

	      Note: It's not reliable yet.  It does not work when some other application keeps the keyboard grabbed.  It does not work with GNOME.
	      Even when it seems to work, some keyboard events may get lost.

       -T     Toggle titlebar, on which channel/bank/program information is shown.  With -G option, it disables titlebar; otherwise it enables it.

       -V     Print version number to standard output and exit.

       -a input port
	      Automatically connect to the named input port.  Note that this may cause problems with LASH.

       -k     Allow  connecting  to  other instances of jack-keyboard (see PIANOLA MODE below).  Without this option, jack-keyboard will refuse to
	      connect to any JACK client whose name starts in "jack-keyboard"; this is to prevent loops.  Note that  it's  impossible  to  connect
	      instance of jack-keyboard to itself, even with this option set.

       -r rate
	      Set  rate  limit	to rate, in Kbaud.  Limit defined by the MIDI specification is 31.25.  By default this parameter is zero, that is,
	      rate limiting is disabled.

       -t     Send all MIDI messages with zero time offset, making them play as soon as they reach the	synth.	 This  was  the  default  behavior
	      before version 1.6.

       -u     By  default,  jack-keyboard does not send program/bank change messages after reconnecting, so the newly connected instrument remains
	      at previous settings.  This option changes that behaviour.

       -c channel
	      Set initial MIDI channel to channel; by default it's 1.

       -b bank
	      Set initial MIDI bank to bank.  With this option, jack-keyboard will send the bank/program change once, when it connects.

       -p program
	      Set initial MIDI program to program.  With this option, jack-keyboard will send the bank/program change once, when it connects.

       -l layout
	      Specify the layout of computer keyboard being used.  Valid arguments are QWERTY, QWERTZ, AZERTY, and DVORAK.  Default is QWERTY.

DESCRIPTION

       jack-keyboard is a virtual MIDI keyboard - a program that allows you to send JACK MIDI events (play ;-) using your PC keyboard.	It's some-
       what  similar  to  vkeybd,  except  it uses JACK MIDI instead of ALSA, and the keyboard mapping is much better - it uses the same layout as
       trackers (like Impulse Tracker) did, so you have two and half octaves under your fingers.

KEY BINDINGS

       Keyboard mapping is the same as in Impulse Tracker.  This is your QWERTY keyboard:

		    +----+----+    +----+----+----+    +----+----+
		    | 2  | 3  |    | 5	| 6  | 7  |    | 9  | 0  |
		 +----+----+----+----+----+----+----+----+----+----+
		 | Q  | W  | E	| R  | T  | Y  | U  | I  | O  | P  |
		 +----+----+----+----+----+----+----+----+----+----+
			| S  | D  |    | G  | H  | J  |
		     +----+----+----+----+----+----+----+
		     | Z  | X  | C  | V  | B  | N  | M	|
		     +----+----+----+----+----+----+----+

       And this is MIDI mapping:

		    +----+----+    +----+----+----+    +----+----+
		    |C#5 |D#5 |    |F#5 |G#5 |A#5 |    |C#6 |D#6 |
		 +----+----+----+----+----+----+----+----+----+----+
		 | C5 | D5 | E5 | F5 | G5 | A5 | B5 | C6 | D6 | E6 |
		 +----+----+----+----+----+----+----+----+----+----+
			|C#4 |D#4 |    |F#4 |G#4 |A#4 |
		     +----+----+----+----+----+----+----+
		     | C4 | D4 | E4 | F4 | G4 | A4 | B4 |
		     +----+----+----+----+----+----+----+

       Spacebar is a sustain key.  Holding it when pressing or releasing key will make that key sustained, i.e. Note Off MIDI event won't be  sent
       after releasing the key.  To release (stop) all the sustained notes, press and release spacebar.

       Holding	Shift  when  pressing  note  will  make it louder (it increases velocity).  Holding Ctrl will do the opposite.	You can change the
       default velocity by moving the Velocity slider.	You can change the "high" and "low" velocity values by moving  the  slider  while  holding
       Shift or Ctrl keys.

       Pressing  "-" and "+" keys on numeric keypad changes the octave your keyboard is mapped to.  Pressing "*" and "/" on numeric keypad changes
       MIDI program (instrument).  Pressing Insert or Delete keys will connect jack-keyboard to the next/previous MIDI input port (it  will  cycle
       between	running  instances  of	ghostess, for example).  Home and End keys change the MIDI channel.  Page Up and Page Down keys switch the
       MIDI bank.

       Esc works as a panic key - when you press it, all sound stops.

SETTING CHANNEL
/BANK/PROGRAM NUMBER DIRECTLY
       To switch directly to a channel, bank or program, enter its number on the numeric keypad (it won't be shown in any way) and press  Home	or
       End (to change channel), Page Up or Page Down (to change bank) or "/" or "*" (to change program).  For example, to change to program number
       123, type, on the numeric keypad, "123/", without quotes.

TITLEBAR

       When -G xor -T is given, some informational messages in the title bar appear. They are  supposed  to  be  self  explanatory.   If  you  see
       "bank/program  change  not sent", it means that the bank/program numbers as seen in the title bar were not sent.  In other words, synth the
       jack-keyboard is connected to may use different values.	This happens at startup and after switching between  synths  (using  Insert/Delete
       keys).	To  send bank/program change at startup, use -b and -p parameters.  To automatically send bank/program change after reconnect, use
       the -u option.

PIANOLA MODE

       In addition to the MIDI output port, jack-keyboard also opens MIDI input (listening) port.  MIDI events going into this port will be passed
       to  the	output	port  unmodified, except for channel number, which will be set to the one jack-keyboard is configured to use.  Note On and
       Note Off MIDI events will cause visible effect (pressing and releasing) on keys, just like if they were being  pressed  using  keyboard	or
       mouse.

       jack-keyboard  will  never  connect  to	it's own MIDI input port.  It will also refuse to connect to any other client whose name begins in
       "jack-keyboard", unless the "-k" option is given.  It is, however,  possible  to  connect  these  ports	manually,  using  jack_connect	or
       qjackctl; this may create feedback loop.

SEE ALSO

       jackd(1), ghostess(1), qjackctl(1)

BUGS

       Key grabbing is unreliable.

       Many  PC  keyboards have problems with polyphony.  For example, with the one I'm using right now, it's impossible to press "c", "v" and "b"
       at the same time.  It's a hardware problem, not the software one.

       The spin widgets used to set channel/bank/program number don't take focus, so the value cannot be entered into them in the usual way.  It's
       because	jack-keyboard  already	uses  numeric  keys  for  different  purposes.	You can still directly enter channel/bank/program in a way
       described above.

jack-keyboard 2.4						   20 April 2008						  JACK-KEYBOARD(1)

Shell Programming and Scripting