In essence, these motets were sacred madrigals. He composed Latin church music, Passions, oratorios, and motets. Bach's a cappella music includes motets and chorale harmonisations. Other vocal music includes motets, arias and two masses. Surviving compositions include four masses, six motets, and three litanies for choir. Franco-Flemish composers mainly wrote sacred music, primarily masses, motets, and hymns. Mendelssohn and Brahms also wrote significant a cappella motets. He was also a prolific composer of sacred vocal works&colon; masses, requiems, motets, etc. Tinctoris wrote masses, motets and a few chansons. Of the eleven extant motets, ten are scored for two four-part choruses. He was one of the most important composers of grands motets. These were settings of Biblical, Latin texts and musically were quite similar to motets. Assandra composed a number of motets and organ pieces. From these first motets arose a medieval tradition of secular motets. He wrote numerous secular songs and instrumental pieces, in addition to masses, motets, and Passions.