To learn The Arcs - Tomato Can chords, focus on the sequence of these chords: Em, C, Am, D, Em, F, Em, F, B and Em. For a smooth transition, initiate your practice at 71 BPM and gradually match the song's pace of 142 BPM. Align the capo with your vocal depth and chord choice, bearing in mind the song's original key: C Major.