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.
A very original theme that makes you feel a lot of feeling in your soul something that hardly. found in today's beats has jazz, blue, Rnb and soul chords, a different rhythm for you, so that you stand out from the rest.
Sample pack Oskar Flood Sample Pack - Splice Sounds
Loop name OSKAR_FLOOD_melody_big_sky_90_Gmaj