Hasit Nanda Piano MIDI : A popular piano-focused transcription often used for Synthesia tutorials.

Nonstop2k Opus MIDI : Offers a full sequence including bass, drums, and backing instruments.

: If you don't want to download a file, you can view the MIDI data and music theory breakdown (chords/melody) directly in your browser. It notes the track is in F♯ Minor . Production Tips for "Opus"

At the start of the MIDI sequence, the synth envelope has a long decay, making the notes sound Plucky and short. As the rhythm speeds up, the decay increases, turning the plucks into a wall of sustaining sound.

If you look at the raw MIDI data of "Opus," the note velocities (how hard a note is struck) start relatively low. As the track progresses, subtle automation of velocity data—alongside synth parameters—adds a human-like dynamics shift, even though the pattern is entirely programmed. The Illusion of Acceleration: Tempo vs. Automation

High scores in melodic complexity and chord progression novelty compared to standard EDM tracks. Recreating the "Opus" Build-Up

Eric Prydz’s "Opus" is arguably one of the most significant progressive house tracks of the 21st century. Released in 2015, the track is a masterclass in tension, release, and minimalist complexity. While it sounds incredibly intricate, the magic of "Opus" lies in its foundational MIDI data—specifically, how a single, repeating musical phrase undergoes a continuous transformation in tempo, velocity, and length.

The core of "Opus" lies in its innovative use of MIDI (Musical Instrument Digital Interface) programming. Prydz, an skilled MIDI programmer, crafted an intricate and nuanced melody using a combination of virtual instruments and external gear. The track's now-iconic arpeggio pattern, synthesized leads, and pulsing bassline were all created using MIDI.

). Avoid placing notes on the predictable beats (1, 5, 9, 13). Instead, offset them by one sixteenth note to capture that signature Prydz syncopation.

: Starting very short (staccato) and lengthening as the track builds.

If you have imported an "Opus" MIDI file into Ableton Live, FL Studio, or Logic Pro, simply playing it through a stock piano plugin won't do it justice. You need to marry the MIDI data with the right synthesis techniques. Synthesizer Settings

If you are looking to download or study the "Opus" MIDI file, look for versions that accurately map out the 16th-note arpeggios across the F# minor scale. Importing this data into your DAW is one of the best ways to study how one of dance music’s greatest icons structures his masterpieces. If you would like to explore this further, let me know: Share public link

While the original MIDI is not officially released, accurate recreations are available via:

The next morning, Eric sent the finished project to his team, who were eagerly awaiting the unveiling of the Opus MIDI. As the news spread, fans and fellow producers alike began to speculate about the mysterious project. Some thought it would be a game-changing album; others believed it would be an immersive live experience.

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

Released in 2015, Eric Prydz’s is widely considered a pinnacle of modern progressive house. For producers and fans alike, the Opus MIDI is more than just a file; it is a blueprint for understanding tension, melody, and one of the most famous tempo increases in electronic music history. Music Theory Breakdown

The bassline follows the root notes of the chords but with a common in progressive house.