To start learning 星野 源 - ドラえもん chords, centre your learning around these elemetal chords sequence: A, B, E, A, Abm, A, Abm, E, Abm and Dbm. For best results, commence at 80 BPM and progress to the song's BPM of 160. With an eye on the song's key Db Minor, set the capo that best suits your vocal range.