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.
Powerful drums, great 808, melody made by me with a royalty free background anbience.
Instrument Background Ambience Loop
Sample pack Sounds of KSHMR
Loop name KSHMR_Reverse_Instrument_05_Guitar_and_Voice_128_F