Music
Music can be entrainment in itself! A Symphony in the Brain is a good read and details how music can be used therapeutically. http://www.words-and-dirt.com/words/review-jim-robbinss-a-symphony-in-the-brain/. Part two of this course will dive in-depth into composing music specifically for a brainwave entrainment protocol. We will concentrate on using and modifying existing music to get you up and running faster.
Thousands of music and ambiance clips can be downloaded from Free Sound: https://freesound.org/. If you are using the session commercially, check the licensing of each clip.
Higher-quality music and ambiance clips can be obtained from Epidemic Sound. Even if you are not selling your sessions, Epidemic Sound is much more convenient for finding what you want using their search engines and AI suggestions. https://share.epidemicsound.com/4dg9k7
Music and Ambience can be mixed into spectacular soundscapes!