To jam and learn Mendy Wald - Yashav chords, your primary focus should be mastering these chords sequence: A, E, A, E, F#m, A, D, A, C#m, F#m and E. A strategic approach would be to train at 71 BPM initially, and then accelerate to the song's tempo of 142. Considering the song's key of E Major, position your capo to suit your vocal and chord preferences.