Music.Theory.Time_Signature
type Time_Signature
ts_whole_note
ts_whole_note_rq
ts_rq
rq_to_ts
ts_divisions
ts_duration_pulses
ts_rewrite
ts_sum
type Composite_Time_Signature
cts_rq
cts_divisions
cts_pulse_to_rq
cts_pulse_to_rqw
type Rational_Time_Signature
rts_rq
rts_divisions
rts_derive
rts_pulse_to_rq
rts_pulse_to_rqw