Chamber Music Society of Oregon
    The award-winning Oregon Sinfonietta, now in its 45th season and conducted by Dr. Donald L. Appert, is a full symphony orchestra of about sixty musicians that draws together community musicians from the greater Portland, Oregon and Vancouver, Washington metropolitan area. The orchestra performs four free concerts per season at the Sunnyside Seventh-day Adventist Church in SE Portland. The repertoire for 2017 – 2018 includes Prokofiev's Lieutenant Kijé Suite, Dvořák's Cello Concerto in B minor, and Brahms' Symphony No. 3, along with other great works. (Please see our Concerts page for the complete repertoire list.) Talented winners of the CMSO Concerto Competition also perform full concertos with the orchestra each season.
    The Oregon Sinfonietta is seeking more string players to join us in performing the great works of the classical music repertoire. Rehearsals are held on Thursday nights, 7:00 p.m. to 9:30 p.m., at Concordia University, Portland, Oregon, in the Fine Arts Building on NE 27th Avenue, between NE Holman and NE Dekum streets. (Please see the below maps and directions to Concordia University.) For more information, please call (503) 285-7621, or e-mail Dr. Appert at

Rehearsal Schedule for November 5, 2017 concert – click here

Rehearsal Schedule for January 21, 2018 concert – click here

Amended Rehearsal Schedule for March 18, 2018 concert – click here (Note: The venue for the February 15, 2018 rehearsal has been changed to Concordia University.)

Amended Rehearsal Schedule for May 20, 2018 concert – click here (Note: Amended March 15, 2018.)

Leave of Absence Policy – click here

2017 – 2018 Violin I & II Sectionals Schedule – click here

Directions and Map to Concordia University - click here

Concordia University Campus Map - click here

Dr. Donald L. Appert's Website – click here

CMSO PhotosCMSO Still Photo Albums - click here