To learn Glay - グロリアス chords, grasp the musical fabric of the song with this sequence - Bb, Dm, C, Bb, A, F, A and Dm of chords. To master the tempo, it's wise to start at 73 BPM before aiming for the song's 147 BPM. Considering your vocal pitch and chord choices, adjust the capo in accordance with the key: F Major.