It would seem to be as Skylab stated. A recording of a student performance.
These were probably broadcast on a local radio station. It wasn't uncommon to have a weekly program devoted to a local music dept.. These kinds of broadcasts were almost never "live" and during that time frame, reel to reel would have been the way it was recorded.
As you might guess, these performances are hit or miss and the recordings depend entirely on the gear and knowledge of the operators.
All you can do is give it a listen. Sometimes with these kinds of school or radio tapes, what is on the label is totally different from what's on the tape.
You might get lucky though. It could be fantastic sounding!
