Seventy active years of doing anything is impressive; 70 years as one of a community's signature musical organizations is more impressive still. The Rochester Oratorio Society has been just that since December 1945 and its first performance of Handel's "Messiah" under its founder Theodore Hollenbach, who led the group for 40 years. (You can hear its next performance of Handel's "Messiah" this December with the RPO.) In those seven decades, ROS has performed many more times with the RPO; hosted choirs here and sung in Europe and China; performed numerous local and world premieres; and been heard on radio and TV. ROS celebrates its 70th this Friday, March 11, at 7:30 p.m. in Hochstein Performance Hall with a selection of choral "greatest hits" by Brahms, Haydn, and Mozart as well as more modern choral favorites by John Rutter and Marten Lauridsen. ROS will be accompanied by organ and the Festival Brass Ensemble. Theodore Hollenbach died in 1994, but ROS Emeritus Conductor Roger Wilhelm and guest conductor Gwendolyn Gassler share the podium with current ROS Artistic Director Eric Townell.
Rochester Oratorio Society's "70th Celebration Concert" will take place Friday, March 11, in Hochstein Performance Hall, 50 North Plymouth Avenue. 7:30 p.m. $20-$25. rossings.org.