extern void midifile();
extern int (*Mf_getc)();
extern void (*Mf_header)();
extern void (*Mf_starttrack)();
extern void (*Mf_endtrack)();
extern void (*Mf_on)();
extern void (*Mf_off)();
extern void (*Mf_pressure)();
extern void (*Mf_controller)();
extern void (*Mf_pitchbend)();
extern void (*Mf_program)();
extern void (*Mf_chanpressure)();
extern void (*Mf_sysex)();
extern void (*Mf_metamisc)();
extern void (*Mf_sqspecific)();
extern void (*Mf_seqnum)();
extern void (*Mf_text)();
extern void (*Mf_eot)();
extern void (*Mf_timesig)();
extern void (*Mf_smpte)();
extern void (*Mf_tempo)();
extern void (*Mf_keysig)();
extern void (*Mf_arbitrary)();
extern void (*Mf_error)();
extern long Mf_currtime;
extern int Mf_nomerge;
extern int Mf_skipinit;