How was the nineteenth-century grand piano different from the eighteenth-century pianoforte? What was the effect of
these changes on the sound of the instrument?
What will be an ideal response?
ANSWER: cast iron frame supported greater tension and thicker steel strings to produce a louder sound; hammers covered
in felt gave a more mellow tone; range expanded from 5 to 7 octaves; development of sustaining and soft
pedals as well as cross-stringing
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