Chicago Symphony Orchestra’s Principal Percussionist perform ‘Cross Fit’ here:

The CSO’s Cynthia Yeh on the vibraphone in ‘Cross Fit’

With her cat Nacho making a special appearance, Cynthia Yeh, principal percussion of the Chicago Symphony Orchestra, performs a segment of Cross Fit, the fourth movement of Robert Honstein's "An Economy of Means" (2015), written for prepared vibraphone.