💾 Archived View for thrig.me › blog › 2023 › 10 › 02 › midibank.pl captured on 2023-12-28 at 16:57:19.

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#!/usr/bin/perl
# midibank.pl - try out MIDI bank select operations. will doubtless
# require tweaks depending on the soundfont file or synth involved
use 5.36.0;
use MIDI;
sub CHAN ()  { 0 }
sub NOW ()   { 0 }

sub MSB () { 0 }
sub LSB () { 32 }

my $file = shift // 'out.midi';

my @Events = (
    #[ control_change => NOW, CHAN, MSB, 0 ],
    [ text_event   => NOW, "steel guitar?" ],
    [ patch_change => NOW, CHAN, 25 ],
    [ note_on      => NOW, CHAN, 60, 100 ],
    [ note_off     => 96,  CHAN, 60, 0 ],
    [ note_on      => NOW, CHAN, 60, 100 ],
    [ note_off     => 96,  CHAN, 60, 0 ],
    [ note_on      => NOW, CHAN, 60, 100 ],
    [ note_off     => 96,  CHAN, 60, 0 ],

    [ control_change => 96,  CHAN, MSB, 16 ],
    [ text_event     => NOW, "mandolin?" ],
    [ patch_change   => NOW, CHAN, 25 ],
    [ note_on        => NOW, CHAN, 60, 100 ],
    [ note_off       => 96,  CHAN, 60, 0 ],
    [ note_on        => NOW, CHAN, 60, 100 ],
    [ note_off       => 96,  CHAN, 60, 0 ],
    [ note_on        => NOW, CHAN, 60, 100 ],
    [ note_off       => 96,  CHAN, 60, 0 ],

);

MIDI::Opus->new(
    { tracks => [ MIDI::Track->new( { events => \@Events } ) ] } )
  ->write_to_file($file);