What album is being referred to in this rock review?

Factual Questions
1

Can someone help me identify what “Environments” is in the rock review below by critic Robert Christgau? I presume it’s an album, but can’t find anything on Wikipedia.

**Metal Machine Music **[RCA Victor, 1975]

Lou’s answer to *Environments *has certainly raised consciousness in both the journalistic and business communities. Though it is a blatant rip-off, it is not–philistine cavils to the contrary–totally unlistenable. But for white noise I’ll still take “Sister Ray.” C+

http://www.robertchristgau.com/get_artist.php?name=Lou+Reed

2

Environments was a record that came out about 1970 with one side consisting only of the sound of the ocean on a beach, and the other of birds in a forest. It was meant to be used as soothing ambient background noise. I’m ashamed to say I owned this thing.

3

Thanks so much! I never could have found that out on my own.

4

A series of synthesized music/“natural soundtrack” albums released in the 1970’s by Syntonic Research, Inc.