Converting mp3 to wav to midi is a task that extract notes from original mp3 files by computer.

reference project

mp3 to wav

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from pydub import AudioSegment

# files                                                                       
src = "/dir/to/the/file.mp3"
dst = "/dir/to/result/file.wav"
                                                    
audSeg = AudioSegment.from_mp3(src)
audSeg.export(dst, format="wav")

wav to midi

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pip install -r ./requirements.txt
python3 ./setup.py install

audio-to-midi /path/to/audio/file.wav -b 120 -t 250 -s

play midi

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sudo apt install timidity timidity-interfaces-extra

timidity -ig