To learn 怒髪天 - オトナノススメ chords, focus on the sequence of these chords: B, E, A, B, C#m, A, C, E, D and A. To master the tempo, it's wise to start at 43 BPM before aiming for the song's 86 BPM. Given the song's key of C# Minor, adjust the capo to align with your vocal range and chord preference.