Suzuki Tonechimes 3rd octave expansion setIntroducing the Suzuki Tonechimes 3rd octave expansion set This is a smaller, expansion set of hand chimes which has been created to work in addition to the HB 250 set of 25 chimes. The HB 250 is the core set of 25 notes which encompass G35 G59. The HB 12A expands this set at the bottom, C4 F#4 and at the top G#6 C6. It is important to remember that this HB 12A set is designed to compliment the HB 250 and is not necessarily something to purchase as a