The base is original from the producer (chords and melodies), but is complemented with elements that complement the song that come from samplepacks, usually, vocal chops, guitars, wobbles sections, glitch effects. It is the standard in which most of producers work, in a project you will find MIDI files made by the producer, but also melodic loops.
All the melodies in the track are mine, written by me, I used a loop and reworked it to maintain the main synths in the track.
There are no loops in the drums, all the drums are written by me.
Sample pack Modern Producer
Loop name Modern Producer - Melody Loop 1 - 78 BPM FMIN