To jam and learn Jackie Evancho - Mama chords, your primary focus should be mastering these chords sequence: E, F#m, D, A, Bm, E, A and Bm. To build a solid grasp, start slowly at 41 BPM and then match the original tempo of 84 BPM. Fine-tune the capo based on your vocal range, ensuring it complements the key of A Major.