The sources discussed in the previous chapter, whether manuscript or printed, preserve their music predominantly and in many cases entirely without text. There is however another group of sources which mixes textless chansons, and other pieces that might be thought to be instrumental, with texted compositions that were surely intended to be sung. Where this happens, it is notable that the textless items are predominantly res facta and consort ricercare pieces, especially in sources that are otherwise made up of frottole and other indigenous Italian song types. In some ways, these sources are just as indicative of a distinct instrumental style as the textless ‘chansonniers’, since consistently varying approaches to the texting of a wide variety of forms are an acknowledgement on the part of the sixteenth-century scribe not only of distinct musical genres but also of their different texting requirements.