Here are some links that you may
find useful:
Avanti Chamber
Singers, a chamber choir based in St. Catharines,
ON, Canada.
First
Ontario Performing Arts Centre presents concerts of
all genres, in St Catharines, ON, Canada.
Brock
University Music Department, presents a choral
series called Viva Voce.
Chorus Niagara,
a large choir based in St. Catharines, ON, Canada.
Cypress
Choral Music, a publisher in Vancouver, which has
published works by many Canadian composers, including
Pnina (Penny) Blake. They also have a Facebook
page.