musicaiz.rhythm.get_subdivisions

musicaiz.rhythm.get_subdivisions(total_bars: int, subdivision: str, time_sig: str = '4/4', bpm: int = 120, resolution: int = 96, absolute_timing: bool = True) → List[Dict[str, Union[int, float]]]

This method returns the grid (vertical lines) for quantizing notes of a determined number of measures given by total_bars. The lines are plotted in each beat subdivision. Each line has the format m.b.s.: m: measure b: beat s: subdivision Ex.: subdivision = 8 is an 8th note

Parameters

total_bars: int

the number of bars.

subdivision: str

the note subdivision. Ex.: quarter, eight… Note that we cannot have a subdivision greater than the beat nor a non value of the beat note. If the beat corresponds to a quarter note (X/4 time sigs.), the subdivision has to be a note shorter than the quarter note but half or 4 times less than the beat (eight, sixteenth note…).

time_sig: str

the time signature as a fraction.

bpm: int

the tempo or bpms.

resolution: int

the pulses o ticks per quarter note (PPQ or TPQN).

absolute_timing: bool

default is True. This allows to initialize note time arguments in absolute (True) or relative time units (False). Relative units means that each bar will start at 0 seconds and ticks, so the note timing attributes will be relative to the bar start equals to 0.

Returns

beat_subdivs: List[Dict[str, Union[int, float]]]

each element in the list is a subdivision. The subdivision dict key’s are:

bar: the bar index in the total_bars of the subdivision.

piece_beat: the beat index corresponding to the subdivision in the total_bars or piece.

piece_subdivision: the subdivision index corresponding to the total number of subdivisions in the total_bars or piece.

bar_beat: the beat index corresponding to the subdivision in its bar.

bar_subdivision: the subdivision index corresponding to its bar.

ticks: the ticks value of where the subdivision starts.

sec: the secs value of where the subdivision starts.