To learn Ratatat - El Pico chords, your practice should emphasize these chord progressions: C, G, C, Em, D, Em, D, G, Em, C, Am and D. A strategic approach would be to train at 49 BPM initially, and then accelerate to the song's tempo of 98. Considering your vocal pitch and chord choices, adjust the capo in accordance with the key: G Major.