Definition of square piano in English:

square piano

noun

  • An early type of piano, small and oblong in shape.

    • ‘The earliest concertos composed for square piano are slight works, diverting but light weight.’
    • ‘The little square piano is not heard of again until months later, in chapter 17, where it briefly has a starring role.’
    • ‘The place was London, and the piano in question was the tiny square piano manufactured by Zumpe and Buntebart.’
    • ‘As with the square piano, this meant foreshortening the bass strings and a resulting loss of tone-quality.’