I came across a rather lengthy article at The Monroe Institute called The Human Knowledge System: Music and Brain Coherence that reminds me how innovative the Hemisync album Remembrance actually is:
The first METAMUSIC® to combine theta and beta waves (Remembrance by J. S. Epperson) was released in 1994 (Bullard 2003). A second METAMUSIC piece combining theta and beta waves, released that same year (Einstein’s Dream, also by Epperson), was based on a modification of Mozart’s Sonata for Two Pianos in D Major, the same piece used in the initial study which produced the controversial Mozart effect. This version, however, had embedded combinations of sounds to encourage whole-brain coherence.
