To learn 21 Savage - Numb chords, these are the chords to practise in sequence: Db, Fm, Bb, Eb, Bbm, Db, Eb, Cm, Fm, Bb and Fm. Set your pace at 82 BPM initially and then sync up with the song's BPM of 164. With an eye on the song's key Gb Minor, set the capo that best suits your vocal range.