Tip - Basic Steps in Playing Harmonica With 48 Holes | eHow
The 48-hole harmonica, either the tremolo or octave-tuned variety, can produce a vastly different sound than the other, simpler form of the harmonica, also known as the "blues harp." The many blow holes on a 48-hole harmonica require a different design layout. Proper holding techniques and knowledge of your harmonica's style are important first...