Bartolomeo degli Organi, Italian musician (d. 1539)
Bartolomeo degli Organi (24 December 1474 – 12 December 1539) was an Italian composer, singer and organist of the Renaissance. Living in Florence, he was closely associated with Lorenzo de' Medici, and was music teacher both to the Florentine composer Francesco de Layolle and Guido Machiavelli, the son of the famous writer.