'Initialize a BasicChordRenderer object.
Args:
velocity: The MIDI note velocity to use.
instrument: The MIDI instrument to use.
program: The MIDI program to use.
octave: The octave in which to render chord notes. If the bass note is not
otherwise part of the chord, it will not be rendered in this octave.
bass_octave: The octave in which to render chord bass notes.'

def __init__(self, velocity=100, instrument=1, program=88, octave=4, bass_octave=3):

    self._velocity = velocity
    self._instrument = instrument
    self._program = program
    self._octave = octave
    self._bass_octave = bass_octave
