From the text accompanying the exhibit Min Tanaka: Photos by Masato Okada 1975-2005 at the museum P.S.1 MoMA in Queens, New York:
For three decades, Butoh master Min Tanaka and photographer Masato Okada have been active collaborators, with the Japanese contemporary dance pioneer seemingly dancing in time with the latter’s breath and clicking shutter.
More info at ps1.org.