To learn Lamp - 回想 chords, these are the chords to practise in sequence: Gb, E, A, E, Bb, B, Bb, Gbm, Bm and D. Start with a comfortable 67 BPM and as you become proficient, aim for the song's BPM of 135. Align the capo with your vocal depth and chord choice, bearing in mind the song's original key: D Minor.