This harmonica has a one octave lower range than a 21-hole Tremolo harmonica. Play this harmonica for a rich, deep ensemble sound. The Baritone harmonica has 21 holes with a range of C (one octave lower than standard) through C3 in the keys of C and C#. The polished ABS comb holds the solid brass reed plates and laser tuned reed system. The gloss black, brass reed covers are shaped for maximum playing comfort. The BR-21 comes in a custom moulded carrying case with formed fit, soft lining.