"It's just the incessancy of it.

"Origins of a Form: Acoustic Exploration, Science and Incessancy."

But the pulse comes as much from her own incessancy, her pleasure and fluency in the eye-to-hand connection, her modest yet penetrating attention, which irresistibly invites ours.

In the end, the incessancy of a theme, a relentless play on the title - the inside scoop on life's necessary covers, or cover-ups - brings to mind an endless riddle that went round long ago.