Approximate formation date of the Florentine Camerata, at the salon of Count Giovanni de' Bardi (earliest record is January 14, 1573).
Manuel Rodrigues Coelho becomes organist of Badajoz Cathedral.
Cipriano de Rore, Sacrae cantiones (pub. by Pierre Phalèse)
January 31
Ambrosius Metzger, German composer and Meistersinger
Giulio Cesare Monteverdi (baptized), Italian composer, younger brother of Claudio Monteverdi
February 22 – Gemignano Capilupi, Italian composer
July 19 (baptized) – Inigo Jones, English stage designer and architect (died 1652)
date unknown
Francesco Colombini, Italian composer and organist
Benedikt Faber, German composer
Juan de Palomares, Spanish composer and guitarist
Alessandro Striggio the younger, Italian composer
probable - Géry de Ghersem, Flemish composer and singer (died 1630)
Cesarina Ricci de Tingoli, Italian composer.
March 15 (or earlier) – Christopher Tye, English composer (born c1505)
November 17 – Joannes Pionnier, French composer
December 7 – John Thorne, English composer and poet
December 27–December 31 – Firmin Lebel, French chorus director and composer
date unknown
Johannes Claux, Flemish composer
Melchior Kreisstein, German music printer
Gislain Manilius, Flemish music printer
Pierre Phalèse the Elder, Flemish music publisher
probable - Alfonso dalla Viola, Italian composer and instrumentalist
1573 in music Wikipedia (Text) CC BY-SA