Click below for the fingerings that I use to play a jazz chord-melody arrangement of Richard Rodgers and Lorenz Hart's 1934 standard Blue Moon. The "A" section relies on repeated I-vi-ii-V Standard progressions while the "B" section on repeated ii-V-I Jazz progressions. I play it in the guitar-friendly key of C not the original key of Eb. The song is played in a medium (or ballad) 4/4 time. The song was written in an AABA form.