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.
The Guitar is a 100% royalty-free sample from Splice.
The Pad I made using Candle The Prince, don't worry I exported it to wav (MIDIs are included).
The Drums I made from scratch as usually.
Sample pack Splice - krs. Build a Vybz Vol. 3
Loop name KRS_80_guitar_loop_namzigroove_Dmin