To jam and learn Gregory Isaacs - Mister Cop chords, your primary focus should be mastering these chords sequence: A, D, A, D, E, A, E and D. For a smooth transition, initiate your practice at 42 BPM and gradually match the song's pace of 85 BPM. Adjust the capo based on your vocal range and chord preference, keeping the song's key of A Major in mind.