The Hamilton Philharmonic Youth Orchestra has announced its 47th season, under the leadership of music director Paul McCulloch. The HPYO comprises a Wind Ensemble and a full symphonic orchestra, and the groups will give three concerts this season, and will also take part in a number of different musical events, including a Showcase concert with the Orchestre des jeunes du Québec maritime in October. hpyo.com

Montreal’s Quatuor Molinari has announced details of its fall 2010 season. Repertoire includes quartets by American minimalist composers Riley, Glass and Reich; the four last quartets of Shostakovich, and a pair of performances with singer Pierre Lapointe, combining his repertoire in unique settings with string quartet, along with movements from quartets by Ravel, Schafer, Glass and Schnittke. For more information on the quartet and its series, you can visit their website at quatuormolinari.qc.ca

Toronto’s Aradia Ensemble (Kevin Mallon, music director) has announced details of its 2010-11 series at the Glenn Gould Studio. Highlights include a semi-staged performance of Handel’s Giulio Cesare (in collaboration with the Centre for Opera Studies in Italy), the “Dublin” Messiah, a program of new works for Baroque ensemble by young composers, and an all-Bach program featuring a singer, a dancer and a visual artist. For more information about Aradia, you can visit their website at aradia.ca