In the present time, when everything seems to have been discovered, researched and revisited, it seems difficult to find a ‘first’. Yet this batch of recordings presents six firsts for early modern Italian sacred vocal polyphonic music. A collection of representative mid-17th-century small-scale sacred monodies by Carlo Filago and Leonardo Leo’s responsories are recorded in their entirety for the first time. The first two albums of Giovanni Legrenzi’s collected liturgical music revisit the late 17th-century composer’s opus, in line with the performers’ goal to record his complete works. Similarly, another in a line of first recordings of Melchior Vulpius’s liturgical output is added to the project, slowly working towards the completion of this composer’s oeuvre on disc. Lastly, late 15th- and early 16th-century music from Italian convents reaches us for the first time.