467 MIDI Information

--Play a MIDI file

MIDI files for listening are in MIDIfiles.zip; the text versions are in midi txt.zip for adapting to your program.
There are five tunes; you should select the one you wish to play. The files called "bandstand_****" go together, and are the separate voices. Audition guitar 1 to hear the tune. You can play the MIDI files (*.mid) on your PC-- if you reconnect the speakers...

Here is a sample song in text format:

// z:\CSE467\midi0\aria.mid
mthd
version 0 // single multichanneltrack
// 1 track
unit 192 // is 1/4
end mthd

mtrk // multichannel track // track 1
/* U0 */ /* 0ms */   tact 4 / 4 24 8
/* U0 */ /* 0ms */   beats 35.00001 /* 1714285 microsec/beat */
/* U0 */ /* 0ms */   key "Cmaj"
/* U0 */ /* 0ms */   [1]+d3 $5A;
/* U0 */ /* 0ms */   [2]+a4 $5A;
/* U0 */ /* 0ms */   [3]+d5 $5A;
/* U0 */ /* 0ms */   [4]+f#5 $5A;
1/8; /* U96 */ /* 857ms */ [1]-d3 $40;
/* U96 */ /* 857ms */   +d4 $5A;
1/8; /* U192 */ /* 1714ms */ -d4 $40;
/* U192 */ /* 1714ms */   +c#4 $5A;
1/8; /* U288 */ /* 2571ms */ -c#4 $40;
/* U288 */ /* 2571ms */   +c#3 $5A;
1/8; /* U384 */ /* 3428ms */ -c#3 $40;
/* U384 */ /* 3428ms */   +b2 $5A;
/* U384 */ /* 3428ms */   [2]-a4 $40;
/* U384 */ /* 3428ms */   +b4 $5A;
1/8; /* U480 */ /* 4285ms */ [1]-b2 $40;
/* U480 */ /* 4285ms */   +b3 $5A;
1/8; /* U576 */ /* 5142ms */ -b3 $40;
/* U576 */ /* 5142ms */   +a3 $5A;
1/8; /* U672 */ /* 5999ms */ -a3 $40;

Comments are inside /* ... */ or start with // till end of line.

Pauses are shown before commands either in MIDI units ( 47; )or musical notation ( 536/4; ).

MIDI notes consists of pairs of commands: Note on is displayed as + and Note off is displayed as -

MIDI channel are displayed in mtrk(channel number) or as [channel number] inside a track before a command.

Values are shown decimal (0-127) or hexadecimal ($00 - $7F).

Standard MIDI file format is here.

Construct a new program for the Microblaze that plays the song of your choice triggered by a keypress.