To learn 방탄소년단 - Butter chords, grasp the musical fabric of the song with this sequence - D#, Fm, C#, D#, C# and Fm of chords. Start with a comfortable 54 BPM and as you become proficient, aim for the song's BPM of 110. With an eye on the song's key G# Major, set the capo that best suits your vocal range.