To learn Sumika - Shunkashuto chords, your practice should emphasize these chord progressions: Gb, Db, Bbm, Ab, Gb, Bbm and Db. To master the tempo, it's wise to start at 79 BPM before aiming for the song's 158 BPM. Adjust the capo based on your vocal range and chord preference, keeping the song's key of Db Major in mind.