Spectacularly athletic ODC danced to the mesmerizing vibrations of Zoë Keating’s magnificent cello in Brenda Way and KT Nelson’s Boulders and Bones earlier this year at the Yerba Buena Center for the Arts. Its annual Summer Sampler, occurring on its considerably more intimate home stage at the ODC Theater, features Breathing Underwater, the 2012 collaboration between Way and Keating. This year’s Sampler is a cozy affair for a cause, with all proceeds from opening night benefiting the treatment of Keating’s husband, who was diagnosed recently with metastatic cancer. Magik*Magik Orchestra’s Erin Wang will also play live for one night only in Way’s 2012 piece on human survival, Lifesaving Maneuvers. The program continues Aug. 1-2 with Nelson’s 2007 Scramble, set to Yo-Yo Ma’s recording of the Bach Cello Suite. From the baroque to the contemporary, from electronic amplification to analog acoustic, the cello and its particularly human qualities unite to come to human aid.