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.
Infectious deep house with an addictive baseline and a killer disco strings section.
Sample pack Soulful & Tech House Vocals by Variavision
Loop name VV_12_VOX_121.wav