The very fabulous Contemporary Keyboard Society presents cave_music.
Some extra details from their press release:
The event “..is sponsored by the Canadian Music Centre’s ambitious New Music in New Places initiative, designed to bring Canadian contemporary music out of the concert halls and into the community. The cave site by the historic Bonnechere river is home to thousands of fossils embedded in the walls of the passages, dating back as far as 500 million years ago.
Performers Katelyn Clark and Xenia Pestova will play multiple toy pianos and portable percussion instruments, placed strategically throughout the cave’s winding passages. Canadian Music Centre Associate Composer Erik Ross will provide an electroacoustic soundscape, which will be played back by loudspeakers, creating an intricate sonic tapestry. According to the composer, the audio material will be based upon Canadian environmental themes and use sounds directly inspired by the cave setting, such as running water, as well as spoken text.”