Hi Austin,

Here is a clear answer to your question.

To 1. You will not find any software that will produce useful music scores from mp3 or from any other sound file. Nothing is impossible as they say, but this is very close to being totally impossible right now and for a long time.

To 2. Contact the composer of your music selection for a copy, or even a photocopy of the music score. Try to find a midi file as Sherry suggests.

The analytic properties of human hearing are amazing. Listen carefully to a recording of your music selection and then try to transcribe it. This is what some Composer users do.

I wish you success,

Herbert