# Summary of IRC Log Discussion (May 16, 2015)

* A discussion about extracting piano sheet music from audio recordings took place, with participants debating the technical challenges of frequency analysis, noting that piano keys produce complex tones with harmonics and noise that complicate identification.

* Audacity's "Plot Spectrum" feature was mentioned as a tool for analyzing musical frequencies, though it was noted that peaks weren't always well-defined and sometimes appeared off-key.

* A participant mentioned the possibility of using MIDI from a digital piano as a more direct approach to learning songs with fast runs, suggesting that audio-to-notation is a challenging problem.

* There was brief mention of backpropagation and an AI system that played the game Breakout, though this topic wasn't developed further in the conversation.

* A technical discussion about Git's "textconv" directive occurred, explaining that it allows Git to convert files to text format for more effective diffing.