Get the original song file or stems if available
Identify the song’s key, tempo, and structure
Use a DAW to import and align the audio
Remove or isolate vocals with stem separation tools
Recreate the instrumental parts with MIDI or live instruments
Replace or enhance drums, bass, chords, and melody as needed
Match the original arrangement and song sections
Mix the instrumental tracks for balance and clarity
Apply EQ, compression, reverb, and other effects
Export the final instrumental in the desired format