You can input these notes into your DAW (Ableton, Logic, FL Studio) piano roll.

2. Filter Cutoff Automation

Map the MIDI to a low-pass filter. At the start of the track, the filter should be closed (200 Hz). As the 9 minutes progress, automate the filter to open (20 kHz). The MIDI notes remain the same; the timbre changes.

Where to Find High-Quality Eric Prydz Opus MIDI Files

Disclaimer: Always ensure the file you download is a transcription for educational purposes and does not infringe on copyright by containing actual audio samples.

Because Opus is instrumental, transcribing it by ear is difficult due to the dense reverb. Look for "MIDI covers" on YouTube with high accuracy ratings. Verified sellers on Gumroad or Etsy often offer "Melodic House MIDI packs" that include Opus as a flagship demonstration.

Expect to pay between $2 and $10 for a high-quality transcription that includes:

MIDI structure (high-level)

7. Recreating “Opus” in a DAW (MIDI Steps)

  1. Set tempo to 126 BPM, key to F minor.
  2. Draw 4-bar chord loop using MIDI notes from section 2. Assign to a synth (e.g., Serum, Sylenth1) with saw waves, low-pass filter closed, slow attack.
  3. Program bass MIDI (section 3) on a separate track using a pluck bass or filtered saw.
  4. Add arpeggio MIDI (section 5) on a third track — high octave, 16th notes.
  5. Create lead melody MIDI (section 4) on a fourth track — monophonic synth with glide and reverb.
  6. Arrange by muting/unmuting tracks following section 6.
  7. Automate filter cutoff, reverb send, and volume on all MIDI tracks.
  8. Export MIDI for live performance or further production.