This is the first period where we can begin to be fairly certain as to how a great deal of the music which has survived actually sounded. The earliest written secular music dates from the 12th century troubadours (in the form of virelais, estampies, ballades, etc.), but most notated manuscripts emanate from places of learning usually connected with the church, and therefore inevitably have a religious basis.

Gregorian chant and plainsong which are monodic (i.e. written as one musical line) gradually developed during the 11th to 13th centuries into organum (i.e. two or three lines moving simultaneously but independently, therefore almost inadvertently representing the beginnings of harmony). Organum was, however, initially rather stifled by rigid rules governing melody and rhythm, which led ultimately to the so-called Ars Nova period of the 14th century, principally represented by the composers de Vitry, Machaut, and Landini.

Album Title Catalogue No.
… just songs! OC801
25 år med Klassiska Favoriter 8.578228
A Bride's Guide To Wedding Music 8.557246-47
A Choral Wedding 8.578196-97
A Green and Pleasant Land 11104-2
A Kremlin Christmas - Christmas Chants of Russia, 17Th-20Th Centuries DE3271
A Meeting Place: Medieval & Renaissance Music for Lute & Ud DSL-92133
A Tapestry of Enchantment 11128-2
A Vision of Christ Through Music 8.570980
Adam De La Halle: Jeu De Robin Et De Marion (Le) 8.557337
Adolf Busch: Klarinettensonate, Lieder, Saxophonquintett MGB-6108
Adorate Deum - Mystic Chants Of The Middle Ages 8.571092
Affresco Musicale del Rinascimento a Bologna TC450002
Afghan Music EUCD2310
Aftonpsalm och Julesang PRCD9004
Alda, Frances: Victor Recordings 1909-1915 (Complete) 81034-2
Aleotti: Le Monache di San Vito TC570101
Alfonso X: Cantigas De Santa Maria 8.553133
Alleluja Nativitas: Canti di Natale - Christmas Songs TC900002
Amarcord: The Book of Madrigals ACC-20304
Among Whirlwinds OC1723
Anglar (Angels) 8.503096
Anima mea: Sacred Music of the Middle Ages 8.572632
Argentum et Arum: Musical Treasures from the Early Habsburg Renaissance 8.573346
Arnesen: Infinity: Choral Works 8.573788