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 bass is a deep 808 made in Serum, VST.
Melodic loops
Instrument Melody
Sample pack Cymatics - 2020 Melody Collection
Loop name Cymatics - 2020 Nostalgic Melody Loop - 7 150 BPM B min #3