#!/usr/bin/perl
use warnings;
use strict;
use MIDI::Realtime;
use diagnostics;

my $midi = MIDI::Realtime->new(dev=>'/dev/sequencer',
                               midi_device=> 1);   # 1,2,3 or4

# Play note 47 with maximum velocity on channel 1 
$midi->note(47,1,127);

# Now have some fun with randomness 

my @notes      = (37 .. 50);
# use all the channels (with extra drums) 
my @channels   = (1 .. 16, 10, 10, 10);
my @velocities = (70 .. 100);

for (0 .. 127) {
  $midi->note($notes[rand(@notes)],
  $channels[rand(@channels)],
  $velocities[rand(@velocities)]
);

# Wait for a tenth of a second 
select(undef,undef,undef, 0.10);
}