

To number pitches, I shall use the ‘scientific’ system, the lowest pitch being A0 and the highest one C8.

The German, British and French schools had different priorities and some preferred to add keys in the bass, some others in the treble, others still did not necessarily care and often ended up behind the times compared to their competitors. It is hard to be precise, for this evolution depends on the manufacturers' geographic location.

It represents the broadening of the tonal range of grand pianos in the course of time. Stuart & Sons have taken the opportunities presented in these developments, rewritten the rule book, and designed and produced the first nine octave acoustic piano for the 21st century and beyond. Music has been and will be written specifically for the whole nine octave range and as such, Stuart & Sons is proud to have created an instrument that is capable of rendering this material.ĭuring the evolution of musical instrument manufacture never, in any previous period in time, has there been access to as many new materials, engineering capabilities and innovation. The hitherto unimaginable goal of nine octaves has been realised after 300 years of piano development enabling the performance of all known compositions written for the instrument without frequency compromise. This ground breaking achievement reaches the frequency realms of many pipe organs: C0 (16Hz) to B8 (7902Hz) and sets a totally new key range or ambitus standard for piano keyboards in the 21st century. The first 108 key acoustic piano was completed in September 2018 by Stuart & Sons in their Tumut, NSW workshops.
