#!/usr/bin/python

import midi
import sys

histogram = [0] * 11
midifile = sys.argv[1]
stream = midi.read_midifile(midifile)
for event in stream.iterevents():
    if isinstance(event, midi.NoteEvent):
        idx = event.pitch / 12
        histogram[idx] += 1
print histogram
stream.textdump()