Hohner Marine Band 364/24 Harmonica: When Sonny Boy Williamson II discovered the rich, deep-toned sound of the twelve hole Echo Vamper harmonica, it inspired him to record one of his best- known pieces, Bye Bye Bird. Now known as the M a r in e B a n d 3 6 4 / 24 , very little has changed since Sonny Boy first played this classic harp