- How can I play specific frequency sound (for example: 314 Hz, 4 seconds)
- How can I increase sound pitch (for example: by 10%)
The Panda sound interface doesn’t allow you to do this programmatically, but you can pre-generate a wav file with the appropriate pitch in it and play that wav file.
For anything else, you’ll need to use some other sound library. Perhaps pygame supports that kind of thing?