This week I processed the MIDI library by hand. The general procedure included opening the MIDI into Musescore and then converting the melodies into a dry piano tone. Then exporting the clip as a wave.
When I started processing the MIDIs, I noticed some flaws in my processing for recorded audio too, since comparing recorded audio to preprocessed audio was starkly different.
My algorithm for comparing the series remained them same, that is the DTW. However, I realized I had to come up with a better pitch detection algorithm. I went with one based on Power Spectral Density Functions with a Hamming window of about 80ms.
So far this is ok, I still have a lot of work left to do with cleaning up the signal.
This set me back a little because the pitch detection is rather complex.
I will continue cleaning the signal and trying to extract the melody as best as possible from the recorded objects in the following week.