According to Fragmentarium, these folios are part of a German source from the end of the 12th century, and their original order was probably ff. 62, 7, 8, 63, 64, 65.
Two hands are present. The second, which is several centuries later, seems to have revised the original manuscript for use under different circumstances: responsory verses are replaced, and some chants necessary for monastic use have been erased.