To reach maximum preference from Hemi sync therapeutic music for memory enhancement, listen to the Hemi Sync music CD's with stereo headset. The vibrancy (the entraining beat) occures in your brain as opposed to the vibration in the air around you. The use of headset operates as a "Direct Line" to the operational and control center of your body.
Retro music is one of the music classification which began in the 80s. Many other new styles of music were already invented in the 80's with the appearence of new instruments. Musicians of the 80's already played on the new electric keyboards, drum machines..