Composer, performer, and instrument builder Cheryl E. Leonard is known for creating compositions using materials she finds in the natural world—things like stones, wood, water, ice, sand, shells and feathers. She’s travelled as far as the Arctic and Antarctica in search of new sounds like calving glaciers and her set of penguin bone instruments.

Leonard talks about some of the challenges of making her microscopically quiet music while living in a city, like having to wake at 3 a.m. and climb into her closet to record. She also discusses the benefits she gets from her other two serious passions, Aikido and mountaineering, and how making art doesn’t necessarily trump those things.