This instrument is a standard, diatonic, 13 note glockenspiel in C. It has precision molded steel note bars which give the instrument exceptionally accurate tuning.The solid wood base is made from selected timber which gives a nice, rounded resonance to the tone too.This instrument does come with 3 extra notes, 2 x F# and 1 x Bb, which enables you to play the instrument in the keys of G and F major as well as C major.Soprano Diatonic Glockenspiel: (C64-A85), with 3 extra notes (2 x F# & 1 x Bb)Note range: C64 A85 Additional notes supplied: F#70, F#82, Bb74Dimensions: - Length 40cm - Width 18cm - Height 6cm - Weight: 0.35 Kg