This is a really nice idea: a super reduced Kyriale with just incipits for each Mass setting, which is great for me, not only as a reminder as a tool to finally learn which setting sounds like what. For those of us who don't do a regular cycle of these, this is a great thing. It is also a nice handout for those many, many Catholic priests and musicians who do not know that the Church offers us more than one chant setting. Congratulations to Peter Kwasniewski for thinking to do this!