Let's start jamming Prince - Black Sweat chords, familiarize yourself with these chords - Abm, B, Ab, G, Ab, Db, Ab, Ebm, G and Abm in sequence. I suggest starting at a calm pace of 54 BPM, and as you gain confidence, approach the song's BPM of 109. With the song's key of Db Minor, set your capo to fit your vocal range and chord choice.