resonance is an ambient sound mixer and binaural tone generator designed to facilitate concentration, meditation, and relaxation. The program contains over fifty natural sounds and music - each one selected for it's ability to help focus your thoughts inward. You are able to play and mix these sounds together as well as add effects to them such as reverb, pitch-shift, and echo - all in a straightforward, non-technical way. It is also possible to import your own sounds. resonance includes a mathematically-precise binaural tone generator, capable of producing fifteen hundred unique binaural frequencies. It is intuitive and simple to use, even for users who don't understand the science behind it.