Miscellany

import pyaudio,time,array,math
p = pyaudio.PyAudio()
sr=8000
nl=0.5
stream = p.open(format = pyaudio.paInt16, channels = 1, rate = sr, output = True)
a=array.array("h")
def s(n):
    if isinstance(n,tuple):return 440*2**(n[0]/12.0),n[1]
    return 440*2**(n/12.0)
for h in map(s,[0,2,3,5,7,7,7,7,(12,0.5),(10,0.5),(12,0.5),(14,0.5),(15,0.5),(14,0.5),(12,0.5),(10,0.5),(7,4)]):
    if isinstance(h,tuple):
        h,lm = h
    else:
        lm=1
    for x in xrange(sr*nl*lm): a.append(int(math.sin(x/float(sr)*h*2*3.141)*32000*(1-(x/float(sr*nl*lm)))))
stream.write(a.tostring())
time.sleep(1)
stream.close()