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 bass is a one shot bass stab. Created by myself. The synth stab is also created by myself. And i add and reworkt some melodic loops from sample packs.
Sample pack SM_Retro HouseSample pack
Loop name rh_bs_rolando_F