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 hope you like my new Track.
I worked some nights hard on it.
The drop has my super powerful Slap House bassline and the unique Drop lead from me.
Instrument Violine [Background]
Sample pack https://splice.com/sounds/splice/sounds-of-kshmr-vol-3
Loop name KSHMR_Cello_19_Melody_125_F#m