Register a function to be called whenever the metronome’s BPM changes. The key and function arguments are the same as found in clojure.core/add-watch, and in fact are passed on to it.

Adds a number of milliseconds to the start time of the metronome.

Returns the current bar number or the timestamp (in milliseconds) of the given bar.

Returns the distance traveled into the current bar as a phase number ranging from [0.0, 1.0), or adjusts the phase to match the one supplied.

Restarts the metronome at start-bar, keeping the beat phase unchanged in case it is being synced to an external source.

Returns the current beat number or the timestamp (in milliseconds) of the given beat.

Returns the distance traveled into the current beat as a phase number ranging from [0.0, 1.0), or adjusts the phase to match the one supplied.

Get the current beats per bar or change it to new-bpb

Get the current bpm or change the bpm to new-bpm.

Get the current bars per phrase, or change it to new-bpp

Returns the duration of one phrase in milliseconds.

Returns the current time as "phrase.bar.beat"

Returns the current phrase number or the timestamp (in milliseconds) of the given phrase.

Returns the distance traveled into the current phrase as a phase number ranging from [0.0, 1.0), or adjusts the phase to match the one supplied.

Restarts the metronome at start-phrase, keeping the beat phase unchanged in case it is being synced to an external source.

Stop calling the function which was registered with the specified key.

Take a snapshot of the current beat, bar, phrase, and phase state. If instant is supplied, calculates a snapshot for the corresponding time rather than the current time.

Returns the start time of the metronome. Also restarts the metronome at start-beat if given.

Returns the duration of one beat in milleseconds.

Returns the duration of one bar in milliseconds.

Determine the metronome’s phase at the time of the snapshot with respect to a multiple or fraction of bars. Calling this with a bar-ratio of 1 (the default if not provided) is equivalent to metro-bar-phase, calling with a bar-ratio equal to metro-bpp is equivalent to metro-phrase-phase, 1/2 oscillates twice as fast as 1, 3/4 oscillates 4 times every three bars… Phases range from [0-1).

Returns the bar number within the snapshot relative to the start of the phrase: Ranges from 1 to the value returned by metro-bpp for the metronome.

Determine the metronome’s phase at the time of the snapshot with respect to a multiple or fraction of beats. Calling this with a beat-ratio of 1 (the default if not provided) is equivalent to metro-beat-phase, calling with a beat-ratio equal to metro-bpb is equivalent to metro-bar-phase, 1/2 oscillates twice as fast as 1, 3/4 oscillates 4 times every three beats… Phases range from [0-1).

Returns the beat number within the snapshot relative to the start of the bar: The down beat is 1, and the range goes up to the value returned by metro-bpb for the metronome.

Returns the beat number within the snapshot relative to the start of the phrase: The first beat is 1, and the range goes up to the values returned by metro-bpb times metro-bpp for the metronome.

True if the current beat at the time of the snapshot was the first beat in its bar.

Returns the time represented by the snapshot as "phrase.bar.beat

Determine the metronome’s phase at the time of the snapshot with respect to a multiple or fraction of phrases. Calling this with a phrase-ratio of 1 (the default if not provided) is equivalent to metro-phrase-phase, 1/2 oscillates twice as fast as 1, 3/4 oscillates 4 times every three bars… Phases range from [0-1).

True if the current beat at the time of the snapshot wass the first beat in its phrase.