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.
Process note
Bass made in Avenger VST.
Strings & Piano made in NEXUS 3.
Project is very organised in case you'll need to change something.
Professionally mixed & mastered.
Melodic loops
Instrument Drums
Sample pack Toolroom - Underground House and Tech
Loop name DRUMS_036_FULL_125