To jam and learn Hélène Rollès - Imagine chords, your primary focus should be mastering these chords sequence: E, F#, B, E, C, G, C, F and G. A strategic approach would be to train at 76 BPM initially, and then accelerate to the song's tempo of 152. Considering your vocal pitch and chord choices, adjust the capo in accordance with the key: B Major.