Example 33. Osbert Parsley Spes Nostra, mm. 71–80 (Audio: LeStrange Viols 2018) Whether the notated minims in the cantus firmus line are intended to be rearticulated or tied together with the preceding breve is an open question. The manuscript Add. MS 31390 does not contain ties, though it also does not contain bar lines so ties are generally unnecessary except in an instance like this where the length of the note cannot be written with a single notehead. Just twenty years later, Morley’s Plaine and Easie Introduction contains both bar lines and notated ties. In our preparations for recording and performing this piece, LeStrange Viols experimented with both options but found that restriking the final minim was too disruptive to the texture and decided to treat it as a single cantus firmus pitch five minims long.