#!/usr/bin/env python
# -*- coding: utf-8 -*-
import wave
import numpy as np
np.set_printoptions(threshold=np.nan)
types = {
    1: np.int8,
    2: np.int16,
    4: np.int32
}
wav = wave.open("record.wav", mode="r")
(nchannels, sampwidth, framerate, nframes, comptype, compname) = wav.getparams()
content = wav.readframes(nframes)
samples = np.fromstring(content, dtype=types[sampwidth])
p=samples.reshape(-1, 2)
gool=str(p)
z=gool.translate(None, '[]')
f = open('record.txt', 'w')
f.write(z)
wav.close()
f.close()
print u"* файл перекодирован"

>>> z = midi.read_midifile("d:\\Python\\Pypi\\mics\\midi\\mary.mid")
>>> z.textdump()
>>> #что вроде как правда, но textdump у меня выдал AttributeError...
>>> #однако, можно просто написать
>>> print z
midi.Pattern(format=1, resolution=220, tracks=\
[[midi.TimeSignatureEvent(tick=0, data=[4, 2, 24, 8]),
  midi.KeySignatureEvent(tick=0, data=[0, 0]),
  midi.EndOfTrackEvent(tick=1, data=[])],
 [midi.ControlChangeEvent(tick=0, channel=0, data=[91, 58]),
  midi.ControlChangeEvent(tick=0, channel=0, data=[10, 69]),
  midi.ControlChangeEvent(tick=0, channel=0, data=[0, 0]),
  midi.ControlChangeEvent(tick=0, channel=0, data=[32, 0]),
  midi.ProgramChangeEvent(tick=0, channel=0, data=[24]),

midi.NoteOnEvent(tick=974, channel=0, data=[60, 0]),
  midi.NoteOnEvent(tick=0, channel=0, data=[52, 0]),
  midi.EndOfTrackEvent(tick=1, data=[])]])