Allow to change pitch too

[ikus060]

Hello,

For some time I was looking for a plugin to change the pitch. Your seam to change the tempo with the pitch plugin. With little modification, I manage to change the pitch instead of the tempo.

Either I'm forking your project or I may submit a patch to add this feature. Are you interested ?

Thanks

[bmerry]

I think fork it for now. I wrote this for a specific use case where extra controls in the UI would just take up space and wouldn't be wanted. I can add a link to your fork in my README to direct other users who want this functionality.