Seydel SH10330/A Orchestra S Harmonica ASolo tuned diatonic Harmonica with corrosion free stainless steel reeds (orchestra tuning), ergonomic covers and carmine red plastic comb. The ORCHESTRA S: We are excited to offer a ten hole, solo tuned harmonica (Orchestra tuning) As with the chromatic harmonica, all notes from the major scale are available throughout a two and a half octave range. The ORCHESTRA S offers even more Typically, the root note is found in hole 1 blow. The ORCHESTRA S