Musicgen

main.py

#too short to license, so public domain
from wavegen import wavegen
from sys import stdout
import random
def tochar(sample):
    sample = sample * 127
    sample = sample + 127
    sample = int(sample)
    return chr(sample)
a = wavegen(440,44100)
ash = wavegen(466.16,44100)
b = wavegen(493.88,44100)
c = wavegen(523.25,44100)
csh = wavegen(554.37,44100)
d = wavegen(587.33,44100)
dsh = wavegen(622.25,44100)
e = wavegen(659.25,44100)
f = wavegen(698.46,44100)
fsh = wavegen(739.99,44100)
g = wavegen(783.99,44100)
gsh = wavegen(830.61,44100)
lfo = wavegen(.5,44100)
notes = [a,b,c,d,e,f,gsh,a.octup(),b.octup(),c.octup(),d.octup(),e.octup(),f.octup(),gsh.octup(),a.octup().octup()]
i = 0
current = a
notelen = 1
currnote = 1
while True:
    samp = current.get_sample(i)
    samp = samp * lfo.get_sample(i)
    if i > 44100 / notelen:
        current = random.choice(notes)
        if currnote == notelen:
            notelen = random.randint(1,4)
            lfo = wavegen(notelen * .5,44100)
            currnote = 0
        currnote = currnote + 1
        i = 0
    i = i + 1
    #samp = samp / 3
    stdout.write(tochar(samp))

wavegen.py

#too short to license, so public domain
from math import pi,sin
class wavegen():
    samprate=None
    freq=None
    def __init__(self,freq,samprate):
        self.samprate=float(samprate)
        self.freq=float(freq)
    
    def get_sample(self,time):
        return sin(time*2*pi*self.freq/self.samprate)
    
    def octup(self):
        return wavegen(self.freq*2,self.samprate)