Jason Ricci - Improvising on-the-fly!

Jason Ricci improvises on diatonic harmonica, on-the-fly, accompanying John Schaman, harmonicaMD, who lays down the rhythm and chord pattern using the diatonic chord harmonica (also known as the harmonicaMD medical harmonica - ). This harmonica plays 8 chords: F, F7, C, C7, G, G7, D, & D7. Jason, with his exceptional mastery of the harmonica, plays along without any rehearsal or practice whatsoever, not knowing the key, nor the chord pattern!