This weekend offers such a wealth of classical music concerts that people will be hard pressed to choose. The Mendelssohn Club’s annual holiday concert at 8 p.m. Friday at The Egg is the first possibility. Director Victor Klimash will lead the 70-voice men’s chorus in seasonal favorites. The String of Pearls jazz trio will guest. $18.
On Saturday, you can get into the spirit of things with a Handel “Messiah” sing-along at 2 p.m. at St. Paul’s Episcopal Church (21 Hackett Blvd., Albany). Borrow a score or bring your own to sing with soloists Vedrana Kalas, Kara Cornell, Andrew Truax and Eugene Tobey, organist Edward Heffron and directed by Steven Rosenberry. Only Part I and the Hallelujah chorus will be performed. A reception follows the concert. $10.
Also on Saturday:
-- The Hudson Valley Choral Society under director Gretchen Rueckheim gives a 7:30 p.m. concert at the Spencertown Academy on Rt. 203 in Spencertown. The program will explore choral works from the Renaissance to the 20th century including four selections from Vivaldi’s “Gloria.” $10, $8, free for 18 and under.
-- Albany Pro Musica under director David Griggs-Janower celebrates with “Trumpets Sound, Angels Sing” at St. Joseph’s Church, 225 Lafayette Street, Schenectady. Seasonal favorites, singalong carols and traditional tunes with the sounds of brass will be performed. $25, $10.
-- At Caffe Lena (47 Phila Street, Saratoga Springs) the Wholesale Klezmer Band returns and promises to set your toes tapping and may prompt not a few to get up and dance as it celebrates Hanukkah with songs in Yiddish and Hebrew. Cue cards with translations will guide the way. $16 (advance), $18 (at door).
-- Capitol Chamber Artists performs its regular 8 p.m. concert at Westminster Presbyterian Church, 262 State Street, Albany. This is not a holiday concert but features two previously unpublished Elegies by Franz Liszt. The program includes Rheinberger’s Organ Trio; Buxtehude’s Viola da Gamba Trio; and Don Jon’s “Song of the Wind” for solo flute. As is customary, the musicians will give a pre-concert recital at 7 p.m. $16, $8.
-- Violinist Jill Levy and pianist Aniko Szokody play a recital at the United Methodist Church (5th Avenue/Henning Road, Saratoga Springs). Levy is well-known locally as the concertmistress of the Albany Symphony Orchestra. Szokody teaches at Union College and the College of Saint Rose. Scheduled are Bach’s Sonata in C minor, Prokofiev’s Sonata in D Major, and Beethoven’s Sonata in C minor. $18, $15, $12.
The day starts early on Sunday with seven concerts:
-- Pianist Judith Gordon plays a recital as part of the Music from Salem series at Hubbard Hall (25 East Main St., Cambridge). Her 2 p.m. concert features works by Bach, Messiaen, Sessions, Chopin and Takemitsu. Donation.
-- Albany Pro Musica repeats its Saturday concert at 3 p.m. at Carondelet Hospitality Center in Latham. $25, $10.
-- Boston Camerata returns to Union College’s Memorial Chapel as part of the International Festival of Chamber Music for a 3 p.m. concert. Each year a different ethnic or historical Christmas is presented complete with instruments authentic to that period. This year it’s an American Christmas. $25.
-- Youth has its day at 3 p.m. with the Empire State Youth and Repertory Jazz Ensembles at the College of Saint Rose’s Massry Center for the Arts. $6, $3.
-- The Glens Falls Symphony Orchestra under music director Charles Peltz features internationally known fiddler Lissa Schneckenberger in its 4 p.m. “A North Country Christmas” at the Glens Falls High School at 10 Quade Street. Schneckenberger, who lives in Vermont, may also sing some of the long-forgotten songs she’s recently discovered in a Maine university archive. The orchestra’s children’s chorus will participate. $25, $10.
-- The Hudson Valley Choral Society repeats its Saturday program at 4 p.m. at the 1st Presbyterian Church at 4th and Warren in Hudson. $10, $8, free for 18 and under.
-- Canadian Brass returns at 7 p.m. to the Troy Savings Bank Music Hall to display its brilliant musicianship and zany antics on seasonal favorites, jazz, classical, and pop tunes. $38, $31, $25.