DAVID HAHN is a composer, performer, and music director of the ensemble called Concert Imaginaire. Many of his diverse works have been commissioned and performed internationally by professional ensembles and soloists including. Mr. Hahn also collaborates with artists in film, theater, dance, and other media.…DAVID HAHN is a composer, performer, and music director of the ensemble called Concert Imaginaire. Many of his diverse works have been commissioned and performed internationally by professional ensembles and soloists including. Mr. Hahn also collaborates with artists in film, theater, dance, and other media.WWWW…