To learn 海龟先生 - 男孩别哭 chords, grasp the musical fabric of the song with this sequence - A, Em, Am, D, C, B and Em of chords. A strategic approach would be to train at 85 BPM initially, and then accelerate to the song's tempo of 170. Adapt the capo setting considering your vocal range, with reference to the key: G Major.