Sapporo Symphony Chorus (SSO Chorus) is a chorus specially formed for the orchestra, established in 2006 to honor the orchestra’s 45th anniversary. Its debut was “Sakkyo the Ninth” which was performed at the end of the same year. The chorus celebrated its 10th anniversary in 2016.
The chorus appeared in the 500th Subscription, Mahler’s Symphony No.2, ”Resurrection” (June, 2007); 511th Subscription, Britten’s Opera “Peter Grimes” (concert version, September 2008); 520th Subscription, Orff’s Carmina Burana (June, 2009); PMF Orchestra with Eschenbach, “Resurrection” (July, 2009); 530th Subscription, Durufle’s Requiem (June 2010); “Akira-san’s Discovery Concert” (summer 2010); “Sakkyo the Ninth” (December 2010); 531st Subscription, Mahler’s Symphony No. 3 (female chorus only, December 2010); Ishikari River Flood Control Anniversary Concert (November 2010); 538th Subscription, with Eliska, Dvorak’s “Stabat Mater” (April 2011); “Akira-san’s Discovery Concert” (August 2011); “Sakkyo the Ninth” (December 2011); Outdoor Concert “Green Concert” (summer 2011); with Takaseki, Beethoven’s “Missa solemnis” (May 2012); with Eliska, “Sakkyo the Ninth” (December 2012); with Otaka, Britten’s “War Requiem” (September 2013); and, “Sakkyo the Ninth,” 570th Subscription, Verdi’s Requiem (June 2014); and “Sakkyo the Ninth,” the last 9th Symphony with Otaka as the Music Director (2014). The chorus activities continued to widen further including performances in the 579th Subscription celebrating the inauguration of Max Pommer as the Chief Conductor (June 2015), made into a CD; again with Pommer, “Sakkyo the Ninth” (December 2015); 598th Subscription (April 2017); 605th Subscription (December 2017); “Akira-san’s Discovery Concert” (summer 2017) and the 9th Symphony (December 2017). For the fiscal 2018, the chorus appeared in 612nd Subscription (September 2018) and the 9th Symphony (December 2018).

Since its establishment, the chorus carried out the audition for 4 times. At present, there are 76 members, with the chorus masters Isao Osanai, Shigeto Oshima, and Toshiaki Nakahara.