This is the standard that most of producers work on. In these type of projects the base is original from the producer — chords, melodies, leads, etc — but it contains additional melodic elements that complement the track and come from royalty-free sample packs. They are usually vocal chops, real instrument chords or textures, wobbles basses, glitch effects, etc. In a project file of this category you will find MIDI files created by the producer, but also melodic loops
Process note
The acid lead melody is made with Serum. I've also used a bass loop and royalty-free vocal from a sample pack.
Melodic loops
Instrument Bass
Sample pack Black Octopus Sound - Dark Heavy Techno
Loop name BOS_DHT_140_Bass_Loop_Sub_Rumble_Thunder_G