To learn Kraftwerk - (2009 Remaster) Pocket Calculator chords, grasp the musical fabric of the song with this sequence - Eb, Bb, Ab and Bb of chords. I suggest starting at a calm pace of 68 BPM, and as you gain confidence, approach the song's BPM of 136. Set the capo considering your vocal range and favored chords, aligned with the key: Ab Major.
