Studying the MIDI file of "Opus" offers immense educational value for any electronic music producer: 1. Reverse Engineering the Arrangement

If you search “eric prydz opus midi,” you’ll find several user-made transcriptions (check out Splice, MIDIWORLD, or ProducerSpot). The story behind them is one of admiration and reverse-engineering — no official file exists, but the community’s best efforts capture about 90% of the notes. The missing 10% is Prydz’s ear for texture and space.

The track has also been subject to several notable remixes, including versions by Swedish House Mafia, Deadmau5, and Markus Schulz.

progression, and automate a linear tempo ramp from .

: It can be imported into Synthesia to learn the complex fingerwork required for the piano arrangement [ 0.5.1 ].