This is the most popular use. High-quality files create those beautiful, dense "waterfalls" of notes that look like a solid wall of green [2, 6].
Instead of every note being at 127 (max volume), a premium MIDI uses varying velocities to give the track a more "mechanical yet musical" feel [4, 5]. How to Use the Rush E MIDI rush e midi file extra quality
To get that sound, you need a MIDI file that captures the "impossible" nature of the song while maintaining clean velocity data and proper note separation [4]. Why "Extra Quality" MIDI Matters for Rush E This is the most popular use
Poorly made files have overlapping "ghost notes" that eat up CPU. Extra quality files are cleaned to ensure maximum performance [2, 3]. rush e midi file extra quality