SONY CD-811 Demonstration Cassette

Product name: SONY CD-811
Series number: YGSK-104
Time period: 1979
Tape type: Type I
Songs: 1-Y.M.C.A, 2-Stayin’ Alive, 3-El Bimbo, 4-When Will I See You Again
Comments: This is a demo tape that came with Sony’s cassette tape player. It seems to be an accessory of Walkman’s first model “TPS-L2” released in 1979. Most of the demo tapes that came with cassette tape recorders at the time had music for audition recorded on side A, and side B blanked so that test recordings could be made. Because it is a demo tape, music for audition is recorded on both sides A and B. The recorded music is all instrumental of pop songs that were popular at the time.