A free concert aimed at those with sensory sensitivities is being offered by the International Symphony Orchestra Aug, 5 in Sarnia. A free afternoon concert designed for audience members with sensory sensitivities is being offered by the International Symphony Orchestra on Aug. 5 at the Sarnia library theatre. Tickets to the 2 p.m. concert, Music Brings Joy: a Sensory Friendly Experience, are available at the symphony’s website theiso.org . “Attendees at the concert will have the opportunities to touch and feel real instruments” after doors open at 1:30 p.m., before the concert begins, said managing director Dinah Bianchi. The concert will be performed by an ensemble smaller than a full orchestra conducted by music director Douglas Bianchi, and with a program focused on “lighter and joyous” music, she said.