Kallisti Percussion    |   home Chromatic Instruments   |   Pentatonic Instruments   |   Diatonic Instruments   |   Instructional Video   |   Mallets Chromatic Instruments These models have a double keyboard arranged like a piano.  Typically the lowest note is the C below Middle C, or the F below that. 2 Octave with Optional Floor Stand 3 Octave Table Model Metal and Wood Tube Resonator Models