And now, the guys ... The Mendelssohn Club of Philadelphia has commissioned a series of Alleluias for retired longtime artistic director Alan Harler. The first two, from two female Philadelphia composers, debuted earlier. Now come two more, from James Primosch and Robert Maggio, to premiere at 4 p.m. Sunday at the Lutheran Church of the Holy Communion. The rest of the program is interestingly British. Although it flopped when new, Benjamin Britten's excellent Gloriana is represented by its "Choral Dances." Ralph Vaughan Williams' Serenade to Music, originally written as a series of cameo appearances for the greatest opera singers of his day, is heard in a choral arrangement. Paul Rardin also conducts

The Passing of the Year

, a double-chorus work by British composer Jonathan Dove. Tickets are $15-$38. Information: 215-735-9922 or

.- David Patrick Stearns

Thirty blows. The Brass Project, a new Curtis Institute of Music brass sextet, announces itself by premiering 30 new works over two days, May 7 and 8. Curated by composer Nick DiBerardino, the two programs include works - short ones, we hope - by a list of composers that includes TJ Cole, Daniel Dorff, Aaron Jay Kernis, Matthew Levy, Scott Ordway, and Alyssa Weinberg. And who can pass up a work titled the intrepid travelers traverse the Great Globulous Glop (by N. Cameron Britt)? Both concerts are at 2 p.m. and are free - no tickets needed - at the Philadelphia Art Alliance on Rittenhouse Square. Information:

- Peter Dobrin