Today's Birthdays in Music: May 4 (Cristofori, Peters)

1655 - Bartolomeo Cristofori, Padua, Italy; instrument maker (built the first playable piano)

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Grand Piano, 1720. Built by Bartolomeo Cristofori, Florence, Italy

1930 - Roberta Peters, New York, USA; opera soprano

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Roberta Peters sings Adina's aria "Prendi, per me sei libero" from Donizetti's L'Elisir d'Amore (New Jersey, 1989)