exact date not known – At the request of composer and music theorist Philippe de Vitry, the mathematician Gersonides writes De numeris harmonicis (On Harmonic Numbers), based on a postulate of Vitry's and once thought (erroneously) to concern the calculation of musical intervals.[2]
before 1342 – Guillaume de Machaut, complainte "Tels rit au main" from Le Remède de Fortune, chanson royale "Joie, plaisence" from Le Remède de Fortune, lais L19 "Qui n'aroit autre deport" from Le Remède de Fortune, rondeaux R22 "Dame, mon cuer" from Le Remède de Fortune, virelais V33 "Dame, a vous sans retollier" from Le Remède de Fortune
1342 – Philippe de Vitry, Petre Clemens/Lugentium siccentur/Non est inventus (motet for three voices), written at Christmas for Pope Clement VI.[6]
1346 – Jacopo da Bologna, O in Italia, madrigal with a text celebrating the birth on 4 August of twin sons to the Milanese ruler Luchino Visconti.
^Thiemo Wind, "Utrecht", The New Grove Dictionary of Music and Musicians, second edition, edited by Stanley Sadie and John Tyrrell (London: Macmillan Publishers, 2001).
^C. Matthew Balensuela, "Gersonides [Levi ben Gershom (Gershon, Gerson); Leo Hebraeus; Magister Leon de Bagnols; RaLBaG]", The New Grove Dictionary of Music and Musicians, second edition, edited by Stanley Sadie and John Tyrrell (London: Macmillan Publishers, 2001).
^Kurt von Fischer and Gianluca D’Agostino, "Donato da Cascia [Magister Dominus Donatus de Florentia]", The New Grove Dictionary of Music and Musicians, second edition, edited by Stanley Sadie and John Tyrrell (London: Macmillan Publishers, 2001).
^Kurt von Fischer and Gianluca D’Agostino, "Lorenzo da Firenze [Magister Laurentius de Florentia; Ser Lorenço da Firençe; Ser Laurentius Masii, Masini]", The New Grove Dictionary of Music and Musicians, second edition, edited by Stanley Sadie and John Tyrrell (London: Macmillan Publishers, 2001).
^Werner Steger and Gábor Halász, "Heidelberg", The New Grove Dictionary of Music and Musicians, second edition, edited by Stanley Sadie and John Tyrrell (London: Macmillan Publishers, 2001).
^Margaret Bent and Andrew Wathey, "Vitry, Philippe de [Vitriaco, Vittriaco]", The New Grove Dictionary of Music and Musicians, second edition, edited by Stanley Sadie and John Tyrrell (London: Macmillan Publishers, 2001).
