Evidence from medieval writers, musical notation, and variant readings in the sources all suggest that troubadour and trouvere songs were performed in more or less equal note values and in a manner that presented the poetry clearly.
van der Werf, Hendrik
"The "Not-so-precisely Measured" Music of the Middle Ages,"
Performance Practice Review:
1, Article 5.
Available at: http://scholarship.claremont.edu/ppr/vol1/iss1/5