Alone by Alan Walker is in Cm at 96 beats per minute and runs 1:59 across 37 bars. It uses 7 chords — Dm, Gm, Eb, Bb, Dm7, N.C., F. The chord diagram changes as the song plays and the words light up as they are sung, so you can strum and sing along without reading ahead.
Want the melody line note by note? Alone guitar melody tab.