Northwest BachFest: Celebrate Diversity How often do you get to see five Grammy winners perform for free? Northwest BachFest kicks off its September series with a free concert at the MAC auditorium featuring the Catalyst Quartet and Zuill Bailey, all recipients of the highest award in music. Catalyst Quartet combines the talents of four Latinx musicians, who in turn commission pieces from emerging Black, Latinx, Asian, LGTBQ and women composers. Together, they’ve created an original set called Little Gems from Diverse Influencers. After solos from Bailey, Bachfest’s artistic director and also a Grammy award-winner, the five musicians unveil a surprise finale. Performances continue throughout the weekend at Barrister Winery with Bach’s Goldberg Variations, Haydn, Glazunov and contemporary compositions, but Friday evening’s performance will be the only free event.