The same pair who created Ariadne auf Naxos--Hofmannsthal and Strauss--also did Der Rosenkavalier. Philip Morehead has assembled some excellent singers for an English concert version (scenes with narration) of Rosenkavalier at the Longy School. Bethany Beardslee and D'Anne Fortunato are singing with two-piano accompaniment. Kenneth Hoffman

LONGY SCHOOL (Garden St.)

Scenes from the Strauss opera Der Rosenkavalier. Sung and narrated in English. Tickets: $3.50 (students: $2). Friday and Saturday, March 29-30, 8 p.m.

UNIVERSITY LUTHERAN CHURCH

Musica Sacra, Marian Ruhl, conducting. Choral works of Bach, Lassus, Josquin, Heiller. Free. Sunday, March 31, 8 p.m.

SANDERS THEATER

Cecilia Society, Donald Teeters, conducting. Mozart: Regina Coell; Litaniae Laurentanae. Hoist chamber opera Savitri. Tickets: $5-$2. Saturday, March 30, 8:30 p.m.

PARK AVENUE CONGREGATIONAL CHURCH (Arlington)

Orchestra and chorus of the Philharmonic Society of Arlington. Works of Pachelbel, Brahms, Bruckner, Monteverdi. Free. Sunday, March 31, 8 p.m.

SANDERS THEATER

Rhenish-Cologne Chamber Orchestra. Free. Tickets from Peabody Music Foundation. Box 153, Back Bay Annex, Boston 02117. Saturday, April 6, 8:30 p.m.