Giovanni Martino Cesare (Udine, c.1590 – Munich, 6 February 1667) was a composer and cornett player who like many of his contemporaries found employment abroad where he flourished. By 1611 (his first publication) he was resident as cornetto player at the house of Charles, Margrave of Burgau (d.1618) at Günzburg, near Augsburg. In 1615 he became an employee of Duke Maximilian of Bavaria, as a cornettist, and where he wrote his best known collection 'Musicali melodie': a collection of sonatas for cornetts and sackbuts that contains one of the only solo sonatas for trombone.

The sole complete copy of the 'Musicali Melodie' is to be found in the Episcopal Library of Regensburg. Of the 28 numbers listed in the table of contents, 14 of these are Sacred Concerts with one to five voices and basso continuo, along with 14 instrumental pieces one to six parts with bc. The informative booklet essay, by Les Sacqueboutiers' Jean-Pierre Canihac, notes similarities with the 'Divine lodi musicali' of Giovanni Battista Riccio and Cima's 'Concerti Ecclesiastici' [1610] which also offer a mixture of sacred motets and instrumental canzone.