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.
I composed and produced this beat around an original lead made with Serum, vst with which I also created the background arp and the bassline . I complemented it with some organic and real instruments licensed by Splice as free royalty use loops, them all listed right below. I used Waves, Fabfilter, OTT and Ozone 9 for the FXs and the engineering.
Sample pack Senegal Sessions by Splice Sessions
Loop name SS_SS_130_kalimba_kaolack_chords_Dm