Although 20% of babies who were exposed to classical music in utero become doctors or lawyers, 100% of babies born on stage during a classical-music performance become Bill Gates. Upgrade your evening with this GrouponLive deal to the "Great BPAC Piano Celebration," presented by Symphony on the Bay at the Burlington Performing Arts Centre. For $17, you get one general-admission ticket on Sunday, May 6, at 3 p.m. (up to a $35 value). This deal applies to both adults and seniors 65 and older. Students age 14–20 attend for $15, and children 13 and younger attend for $5.

Under the precise baton of conductor James R. McKay, the professional and volunteer musicians of Symphony on the Bay push their nine-foot, handmade Shigeru Kawai EX Concert Grand piano to its limits with the help of guest artist Valerie Tryon. Resident ivory-tickler Andrea Battista starts off the program with J.S. Bach's Concerto for Keyboard no. 3 in D Major, an airy composition as nimble and elegant as a ballerina in a monocle. Next, the British-born Tryon takes the keys to play Liszt's Concerto no. 1 in E-flat Major with bombastic relish. Liszt is a specialty of the pianist, whose playing the Barrie Examiner praised in a recent all-Liszt recital as "eloquent, sensitive and spectacular." The evening concludes with the grand sweep of Rachmaninoff's Symphony no. 2 in E-minor, whose brassy mountain peaks break up the string section's serene weather patterns.