Streamlined TaleaRhythmMaker initializer signature.

Old:

    def __init__(
        self,
        talea=(-1, 4, -2, 3),
        talea_denominator=16,
        prolation_addenda=None,
        lefts=None,
        middles=None,
        rights=None,
        left_lengths=None,
        right_lengths=None,
        secondary_divisions=None,
        talea_helper=None,
        prolation_addenda_helper=None,
        lefts_helper=None,
        middles_helper=None,
        rights_helper=None,
        left_lengths_helper=None,
        right_lengths_helper=None,
        secondary_divisions_helper=None,
        beam_each_cell=False,
        beam_cells_together=False,
        decrease_durations_monotonically=True,
        tie_split_notes=False,
        burnish_divisions=False,
        burnish_output=False,
        ):

New:

    def __init__(
        self,
        talea=(-1, 4, -2, 3),
        talea_denominator=16,
        prolation_addenda=None,
        lefts=None,
        middles=None,
        rights=None,
        left_lengths=None,
        right_lengths=None,
        secondary_divisions=None,
        helper_functions=None,
        beam_each_cell=False,
        beam_cells_together=False,
        decrease_durations_monotonically=True,
        tie_split_notes=False,
        burnish_divisions=False,
        burnish_output=False,
        ):

The old helper function keywords ...

    talea_helper=None,
    prolation_addenda_helper=None,
    lefts_helper=None,
    middles_helper=None,
    rights_helper=None,
    left_lengths_helper=None,
    right_lengths_helper=None,
    secondary_divisions_helper=None,

... have been replaced by ...

    helper_functions=None

... alone.

The keyword can be left set to none. Otherwise pass a dictionary of helper
functions:

    helper_functions = {
        'talea: first_helper_function,
        'prolation_addenda': first_helper_function,
        'secondary_divisions': second_helper_function,
        }
Streamlined IncisedRhythmMaker initializer signature.

Bundled all helper functions in helper_functions=None keyword.

Pass in a dictionary of helper functions.