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.
The track is built around the piano loop from Splice. Layered with another piano sound, remade the chords to fit perfectly with the loop.
There is only 1 piano loop used in this project, the rest is made by the producer.
The drop is filled with ambience sounds like stabs, violins and vocal chops to create a deep and vibey feeling!
The break is made by using the chords from the drop, adding the vocal that fits really well. Then ambience and drum samples build around it to finish it off!
Sample pack Splice - Modestep bass evelution pack
Loop name MODE_Melodic_loop_145_ClapIt_F#m.wav