nametone.py

#!/usr/bin/env python
import fileinput

notes = [' '] + ('A Bb B C C# D Eb E F F# G G#'.split() * 2)
chars = ' abcdefghijklmnopqrstuvwy'
mapping = dict(zip(chars, notes))

def normalize(c):
    return c.lower()

def char2tone(c):
    return mapping.get(normalize(c), '')

def process(line):
    return ''.join(map(char2tone, line))

def main():
    for line in fileinput.input():
        print process(line)

if __name__ == "__main__":
    main()