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PianoBooster
A MIDI file player/game that displays the musical notes and teaches you how to play the piano.
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
There are programs like https://github.com/pianobooster/PianoBooster which can take a midi file and do what you want. However you need to find the midi file to start with, and youtube isn't going to help.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.