Building Harmonica Technique Volume 1 & 2 – David Barrett Category: Beginners Taught by: David Barrett Another great tutorial video by harmonica teacher David Barrett. How to hold the harmonica ? How to get a good sound ? How to bend your notes on the harmonica ? This video bridges the gap between what can be studied at home and what can only be learned in private lessons. Fantastic visuals and camera close-ups ensure that even the smallest details are seen.