The internet is awash with free, low-quality MIDI files. These are often sequenced by ear by amateurs, resulting in timing errors, missing harmonies, and a general "robotic" feel. When searching for the term "Extra Quality" is the differentiator.

Many hip-hop producers use MIDI to create samples. You could take the chord progression from the MIDI file, run it through a "Lo-Fi" effect plugin, chop it up, and create a completely new beat. This allows you to sample the composition legally and creatively, giving you full control over the sound.

It is vital to address the elephant in the room. Downloading a of a copyrighted song like C’est La Vie exists in a grey area.

Why go through the trouble of finding ? For the live performer.