Hohner has released some great footage of Howard Levy playing harmonica at the recent World Music Festival in Innsbruck, Austria.  Howard performed with the Hohner Accordion Orchestra 1927, playing a new arrangement of his piece "Concert for Diatonic Harmonica and Orchestra" that had been arranged by the conductor Johannes Baumann. The piece itself is a testament to the all of the musical possibilities of the diatonic harmonica, as Howard uses many of the bending and overblow techniques that he teaches his harmonica lessons online at ArtistWorks.  There's a great moment as the rest of the orchestra stops playing to listen and watch Howard play his incredible rendition of "Amazing Grace" on harmonica, they're all captivated by the music.