A tiny, nifty script for playing random musical notes on each keypress

keypress.py

#!/usr/bin/env python 
## A tiny, nifty script for playing random musical notes on each keypress. 
## 
##	Copyright Sayan "Riju" Chakrabarti <s26c.sayan@gmail.com> 2009-2019
##		Released under WTFPL Version 2 
## (DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE) 
##	Copy of license text can be found online at
##	http://sam.zoy.org/wtfpl/COPYING
##
## External/System Dependencies:
## * Sox (http://sox.sourceforge.net/sox.html)
##
## Python Dependencies:
## * python-xlib (https://github.com/python-xlib/python-xlib)


from Xlib.display import Display 
import os 
import time
import random

ZERO, SHIFT, ALT, CTL = [], [], [], [] 
for i in range(0,32): 
	ZERO.append(0) 
	if i==6: 
		SHIFT.append(4) 
	else: 
		SHIFT.append(0) 
	if i==4: 
		CTL.append(32) 
	else: 
		CTL.append(0) 
	if i==8: 
		ALT.append(1) 
	else: 
		ALT.append(0) 
		 
ignorelist = [ZERO,ALT,SHIFT,CTL]

def randomNoteFreq():
	return random.choice([ 220, 246.94, 261.63, 293.66, 329.63, 349.23, 392 ])

def main(): 
	disp = Display()	# connect to display	 

	while 1:	#event loop 
		keymap = disp.query_keymap() 
		if keymap not in ignorelist: 
			os.system('play --no-show-progress --null --channels 1 synth %s sine %f' % (0.05, 2 * randomNoteFreq()))
			time.sleep(0.1)
 
if __name__ == '__main__': 
	main()