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.
This track has an old face but with a newer Tech House feel. I started this track with the break and then the drop and finally added the vocal and lead at the end of the track.
Sample pack SIIK Sounds - SLCTD Collections
Loop name SLCTD Atmosphere 18 Fmin 126BPM