The LoC manuscript (London Add. 30091) contains fourteen motets that may be divided into two equal halves of seven pieces representing two different styles. All the concordances are listed and each motet is placed in the historical position of the manuscript itself and in the repertory of the early motet (1200-1245). In contrast to the motets nos. 1-7, nos. 8-14 have no clausula source and do not go back to an earlier Latin motet or a version in the old conductus-style. They are contrafacta of bilingual motets, but in contrast to the first group they have hardly been reworked thereafter. From this and other stylistic features, it may be concluded that the second group must be at least twenty years younger than the first. No other manuscript shows the shift from bilingual to Latin contrafacta as clearly as LoC. Adam de la Halle's motet J'os bien a m'amie parler/Je n'os a m'amie aler/(In) seculum may be modeled on the original Latin version of Eva quid deciperis/In seculum.

Works: Works: Anonymous motets including contrafacta: Salve salus hominum/O radians stella/Nostrum (161-62); O Maria, decus angelorum/Nostrum (161, 164); Tu decus es decoris/O Maria, beata genitrix/Nostrum (161, 164); Plus bele que/Quant revient/L'autr'ier jouer/Flos filius eius (165); Quant revient/L'autr'ier jouer/Flos filius eius (165); Candida virginitas/Flos filius eius (165-66); Castrum pudicitie/Virgo viget/Flos filius eius (165-66); Flos ascendit/Flos filius eius (167-68); Ne sai que je die/Johanne (170-71); Cecitas arpie fex/Johanne (170-71); Tedet intueri/Te decet (172-75); El mois d'avril/Al cor ai une/Et gaudebit (175); Ypocrite pseudopontifices/Velut stella/Et gaudebit (175-76); Virgo Virginum/Et gaudebit (175-76); Memor tui creatoris/Et gaudebit (175-76); O felix puerpera flos virginum/In seculum (180-81); Hac in die dulce melos/Cumque evigilasset (182); Hac in die dulce melos/Spes vite miseries/Cumque evigilasset (182-83); Balaam, prophetandi patuit/Balaam (183-84); Arbor nobilis/Crux forma penitentie/Sustinere (185-87); Cruci Domini/Crux forma penitentie/Sustinere (185-87); Eva quid deciperis/In seculum (187-88); Adam de la Halle: J'os bien a m'amie parler/Je n'os a m'amie aler/(In) seculum (188-89).

Index Classifications: Polyphony to 1300

Contributed by: Andreas Giger