This is a simple meditation audio track featuring nine Solfeggio frequencies over a backgroud of soothing rain sound. It is just the pure sine wave tones plus rain, so it is easy to focus on the tones - there is no music or other distracting elements. The frequencies used are 174Hz, 285Hz, 396Hz, 417Hz, 528Hz, 639Hz, 741Hz, 852Hz and 963Hz. The track begins with approximately one minute of rain noise, then each tone is played in sequence for two minutes. It finishes with another minute of rain, lasting 20 minutes in total.