Play a full octave using pysine

octave.py

# Play all notes between 440-880hz, inclusive  
from pysine import sine

def get_freq(key):
    # For a given piano key, return the frequency
    # Taken from https://en.wikipedia.org/wiki/Piano_key_frequencies
    return 2**((key-49)/12) * 440

for key in range(49, 62):
    freq = get_freq(key)
    print("Playing at", round(freq), "Hz")
    sine(frequency=freq, duration=0.2)