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date: 31 May 2020

Duplex scalinglocked

Extract

A system of Aliquot scaling introduced by Steinway to provide sympathetic resonance to enrich the treble register of the piano. In the ‘octave duplex’ piano by Hoerr of Toronto, each note had four strings, of which two, three or four might be struck by the hammer depending on one of four pedals being depressed (see ‘The Octave Duplex Piano’, ...

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