Seattle Pro Musica celebrates its 40th anniversary on Oct. 21, 2012, with a program drawn from four decades of performances and recordings, sung by SPM members past and present.

To celebrate its 40th season, Seattle Pro Musica is presenting “40: Anniversary Alumni Celebration” on Sunday, a concert that falls outside its regular 2012-13 offerings.

The program draws from music that SPM has performed and recorded over the past four decades, including selections from Rachmaninov’s Vespers, passages from Frank Martin’s Mass for Double Choir and arrangements of Bulgarian folk songs for women’s choir. It closes with artistic director Karen P. Thomas’ own setting of the Baptist hymn: “How Can I Keep from Singing?” Both present and past members of SPM will be performing.

3 p.m. Sunday, Plymouth Congregational Church, 1217 6th Ave, Seattle; $15 (206-781-2766 or

Michael Upchurch:

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