To learn Muddy Waters, Otis Spann, The Chris Barber Band - (Recorded Live At The Manchester Free Trade Hall - 26th October 1958) Blow Wind Blow chords, your practice should emphasize these chord progressions: Eb, D, Am, G, D, G, Eb, Gm and Eb. Start slow with ChordU's Free Tempo controller and increase your speed as you get comfortable. Adjust the capo based on your vocal range and chord preference, keeping the song's key of G Major in mind.