"""
Niveau 4
Jouer des accords
"""

import synth
import math

music = [
	[2, [5, 9]],
	[2, [4, 8]],
	[1, [-12]],
	[1, [0, 2, 4]],
	[1, [-10]],
	[1, [2, 4, 6]],
]

encoder = synth.Encoder()

for chord in music:
	for t in range(chord[0]*4000):
		total = 0
		for note in chord[1]:
			total = total + math.sin(t/16000 * 440 * 2**(note/12) * 2*math.pi)
		encoder.write(total * 0.3)