Piano Solo - Level 2 - Digital Download SKU: A0.1475780 By Billie Eilish. By Billie Eilish O'Connell and Finneas O'Connell. Arranged by Ella Anchor. Pop,Singer/Songwriter. Score. 3 pages. Ella Anchor #1053338. Published by Ella Anchor (A0.1475780). Piano accompaniment arrangement of the song What Was I Made For? originally performed by Billie Eilish. This is the instrumental only without the vocal melody in the original key of the song (C). For you to play and sing!During live performances, they play this song in Bb.