07-15-2010, 04:43 PM
I believe binaural beats are an excellent tool for inviting a person's brainwaves to participate in a particular range of frequencies. There are several examples on Youtube. Also look up videos demonstrating solfeggio frequencies. In music, vibrato is generally considered a pleasant effect, and that's a natural 5 to 8 hertz resonance - right at the theta to alpha range. (For an obvious example right at the start of the song, think of the swirling electric piano effect throughout Billy Joel's song "Just the way you are." That's something like 5 hz right there.)