||Plainchant. The performance of plainchant : some preliminary observations of the new era / Lance W. Brunner ; Giving voice to Gregorian chant, or, Coping with modern orthodoxies / Katarina Livljanić -- Secular monophony. Rhythm, meter, and melodic organization in medieval songs / Hans Tischler ; The 'not-so-precisely measured' music of the middle ages / Hendrik van der Werf ; Voices and instruments in medieval French secular music : on the use of literary texts as evidence for performance practice / Sylvia Huot ; Johannes de Grocheio on secular music : a corrected text and a new translation / Christopher Page -- Polyphony to 1300. The performance of Parisian organum / Edward Roesner ; Franco of Cologne on the rhythm of organum purum / Charles M. Atkinson ; The copula according to Johannes de Garlandia / Jeremy Yudkin ; Conductus and modal rhythm / Ernest H. Sanders ; The performance of ars antiqua motets / Christopher Page -- Mass and motet after 1300. Representations of the mass in medieval and renaissance art / James W. McKinnon ; The performing ensemble for English church polyphony, ca. 1320-c. 1390 / Roger Bowers ; Text underlay in early fifteenth-century musical manuscripts / Gilbert Reaney -- The polyphonic chanson. Machaut's "pupil" Deschamps on the performance of music : voices or instruments in the 14th-century chanson / Christopher Page ; The performance of songs in late medieval France : a new source / Christopher Page ; Texting in 15th-century French chansons : a look ahead from the 14th century / Lawrence Earp ; Embellishment and urtext in the fifteenth-century song repertories / David Fallows -- Other matters. Musica recta and musica ficta / Margaret Bent ; The origin and early history of proportion signs / Anna Maria Busse Berger ; Jerome of Moravia on the rubeba and viella / Christopher Page ; The 'Arabian influence' thesis revisited / Shai Burstyn.