title: Sound editing and equalizer on python
body: <p>Im currently using <a href="http://www.pyglet.org/" rel="noreferrer">pyglet</a> as my sound library on python,</p>
  
  <p>The library is great but it does not contain an important feature i really need:</p>
  
  <p>Frequency control while playing a certain song (lets say .mp3),</p>
  
  <p>Meaning, I want to lower the bass frequency or raise the higher frequencies while playing </p>
  
  <p>a certain song.</p>
  
  <p>And it should have a player which can play songs from a certain location in the song,</p>
  
  <p>Play couple of .mp3's together and can pause/stop when needed (pyglet has these options)</p>
  
  <p>Is there a python sound library which holds these capabilities? </p>
  
  <p>Im using mac os 10.8</p>