To learn Gwalarn - (Breton Group - Celtic Music from Brittany -Keltia Musique -Bretagne) Da Viken chords, grasp the musical fabric of the song with this sequence - F#m, G and F#m of chords. For a smooth transition, initiate your practice at 86 BPM and gradually match the song's pace of 172 BPM. Align the capo with your vocal depth and chord choice, bearing in mind the song's original key: D Major.