To learn German Garmendia - Tkm chords, grasp the musical fabric of the song with this sequence - Dm, C, Bb, Dm, C, Dm, Bb and C of chords. To master the tempo, it's wise to start at 75 BPM before aiming for the song's 150 BPM. Fine-tune the capo based on your vocal range, ensuring it complements the key of D Minor.