Simple Timing arp idea

ta.py

from itertools import cycle

from bl.arp import RandomArp, OrderedArp, ArpSwitcher
from bl.orchestra.midi import Player, ChordPlayer
from bl.utils import getClock

from tutor.complib import piano_f

piano = piano_f()


time = [
    (1, 4),
    (1, 8),
    (1, 8),

    (1, 16),
    (1, 16),
    (1, 16),
    (1, 16),


    (1, 16),
    (1, 16),

    (1, 8),

]



notes = [
    60, 62, 64,
    62, 64, 65,
    64, 65, 67,
    65, 67, 69,
    67, 69, 71,
    69, 71, 72,
    71, 72, 74,
]

oarp = OrderedArp()
arp = ArpSwitcher(oarp, notes)


class TimingArp(object):

    def __init__(self, l):
        self.l = l
        self.c = cycle(l).next
        self.clock = getClock(None)

    def __call__(self):
        return self.clock.meter.dtt(*self.c())

    def reset(self, l):
        self.l = l
        self.c = cycle(l).next

ta = TimingArp(time)

player = Player(piano, arp,
                     velocity=RandomArp([127, 80, 90, 80,]),
                     release=RandomArp([11, 10, 9, 8, 40]),
                     interval=ta
)


player.resumePlaying()

arp.arp.reset(notes)
arp.arp.reset(list(reversed(notes)))