Theraphonia - Circle's Edge 1 Binaural [F87.3Hz θ 6Hz 30m] by Mars Arcana

This thought experiment uses a carrier frequency of 87.3 Hz - the key of F, and produces a theta binaural of 6.2 Hz. The track uses a personal favorite field recording "Frogsong at Miner's Marsh" with the operatic crooning of green frogs recorded in the Annapolis Valley, Nova Scotia. That recording is also available in Soundprint Archive Vol. 1. The binaural itself is mix isolated for increased effectiveness.