To learn O.S.T.R - Asomia chords, begin by getting comfortable with these sequence: B, G#m, F#, G#m, F#, E, G#m, E and F#. Ease into the song by practicing at 60 BPM before reaching the track's full tempo of 120 BPM. With B Major as the song's key, tweak the capo to cater to your vocal pitch and chord likes.