ASO Chorus. Norman Mackenzie, the ASO's director of choruses, has the massive ASO Chorus in top form. After helping end the 2014-2015 season in May with a concert staging of Giuseppe Verdi's "Aida," the chorus returned with a rapturous, emotional version of Mahler's "Resurrection" symphony. The chorus' other big showing came during the exceptional "Messa da Requiem" by Verdi.
Chamber groups. The city's three most forward-leaning chamber groups – Sonic Generator, Bent Frequency and Chamber Cartel – continued excellent, inventive programming. Bent Frequency emerged in October at GSU with a free staging of chamber opera "DeCachetitoRaspado," and Chamber Cartel opened its 2015-2016 season with the southeastern premiere of Pleiades, a percussion composition by Iannis Xenaki.