Hi everyone! I haven't participated here in many years but I lurk here to find resources and rep suggestions quite often. I've been coming up against a wall recently and thought I'd actually post for once.

I often put together small professional pick-up groups for Latin Masses in southern California. I sing and conduct, and the other musicians are generally colleagues I've worked with while singing in other places, many of whom sing with LA Master Chorale and other similar professional groups in the area. (I currently sing as a chorister with LA Opera and have a staff singer position at a relatively prominent Catholic church, as well as subbing in other places.) The groups are typically octets; we have a two-hour rehearsal before the Mass to put everything together. Rep generally includes a full polyphonic Mass (recent ones have been Victoria's Missa Ascendens Christus in Altum and Missa O Magnum Mysterium) and a couple of motets, and the rest is filled out by organ. One on a part is typical; we've done pieces like Bruckner's "Christus factus est" and some of Stanford's Latin motets, as well as selections from Byrd's Gradualia and lots of other Renaissance polyphony. We typically do all of the chants as well, but I've moved towards having them sung by soloists rather than with the whole group, as pro classical singers typically don't have training in chant, even if their degrees were specifically in early music. (Too early?) It also saves rehearsal time, honestly. I typically try to strike a good balance between interesting repertoire that may not be sung very often, while also being reasonably achievable within the allotted rehearsal time (and some individual prep time, as I provide music ahead via email) considering the sheer volume of music. We tend to mostly do a cappella music, which started because the original organ at the church was horrible, but I also just really enjoy it and it makes the most of the acoustics of the church, which are excellent.

So, with these forces in mind--I've been coming up a little empty on music for the solemnity of Sts. Peter & Paul. It's the patronal feast for this church so I'd like to do something special. At the moment I'm planning on Pearsall's "Tu es Petrus." I had been thinking about using one of the Victoria Masses I've done before (I tend to program his Mass settings often because they're both musically more interesting to sing and easier to put together--Palestrina can be less interesting, Lassus can feel very exposed, etc) but am open to other suggestions, and I'm also having trouble finding another motet and/or polyphonic gradual. I'd be grateful for any suggestions. Thank you!