As Synergy, Larry Fast composed, recorded, and released Audion on Passport Records as a cassette and vinyl LP in 1981. It had a limited release as a CD in 1986. For digital remastering in 1998, Fast used the original tapes that preceded the original release. The quality of this reissue (1998) is superb. The quality of the music is also superb. This legendary e-musician has always been on the cutting edge of technology and artistry. His soundscape is full of dense, deep, dark, and deft sequences. To assure that there are no mistaken identities, Fast adds more sequences. To give the disc its artistic integrity, he adds some synth riffs with rock & roll textures and timbres. There are no guitars. For e-music fans, this disc is essential because of its techniques and historical importance. It will appeal to fans of Dweller at the Threshold, Radio Massacre International, Kubusschnitt, Jean Michel Jarre, and Tangerine Dream. Prog rock fans will also find it important.