Using audio only you can probably generate sheet music and tab based on a known instrument. One thing to think about is that the same note can be played on mul

Using audio only you can probably generate sheet music and tab based on a known instrument. One thing to think about is that the same note can be played on multiple different strings, so you would want to figure out the probability of which string and fret was played, and you could enhance this by analysing an entire passage to figure out which strings fret pairs map to sequence of notes the best based on how a human would play that passage.