"""
Niveau 5
Jouer une partition
"""

import synth
import math

music = synth.Midi(32000)

encoder = synth.Encoder()
encoder.sampling = 32000

instruments = [
	lambda t, f: math.sin(t * f * 2*math.pi),
	lambda t, f: math.sin(t * f * 2*math.pi) + math.sin(t * f * 4*math.pi)/2,
	lambda t, f: math.sin(t * f * 2*math.pi) + math.sin(t * f * 4*math.pi)/2,
	lambda t, f: t * f % 1 - 0.5,
]

t = 0
for notes in music:
	total = 0
	for note in notes:
		total = total + instruments[note[0]](t/32000, 440 * 2**(note[1]/12)) * note[2]
	encoder.write(total * 0.3)
	t = t + 1