Computer Music g MIDI device driver s Communication with the host s Synthesizer control Musical examples in C and the shell s M language M keyboard interface code-sharing mechanism middle c s MIDI channel number s device driver g MIDI events s MIDI file s MIDI standard mux c parallel port pitch class s real-time controller receiver queue s rhythm list s scheduler queue s shell script status byte s time values s lex C yacc C awk c sed C channel number s midiblt c transmitter queue jx7 c streams mechanism midi process f score S scoreblt c thinkblt c Txchan S Mecho S Dxvoice S play S Newfile S retro S voice name s note list s rests s octave number s chord s unmidi S 5620 RS232 TX816 interrupts s DX7 SPX90 FB01 Musical Instrument Digital Interface g ~display ~playing unmidi C notes s sequence s modifiers s ~harpsichord