Handel microtonisized?

So I've been poking through the files area at YahooGroups, and came across a
copy of a Webpage I'd already found elsewhere on the 'Net. To wit, a
discography of microtonic compositions.

But there's one possible contender for this list that wasn't there, an album
I've been trying to remember the details of unsuccessfully for years. It
seems that, around 1960-something, when the boom of "authentic" performances
of Baroque music was getting under weigh, someone did a spoof ultra-authentic
version of Handel's Water Music, a performance with certain microtonic
features, to say the least.

Side one of the LP was a long lecture, with musical examples, of how various
instruments must have sounded when played on, e.g., brass instruments without
keys. The natural overtone series, the lecturer asserted, might sound a bit
pungent to our ears, but it's far more authentic a sound than we're
accustomed to when we listen to the usual late-romantic orchestras trying to
render the Baroque sound.

After the lecturer toured all the various sections of the orchestra, the main
performance began (as I recall, comprising side two of the LP). And,
obviously, given that the brass players were playing on open horns, not even
trying to "lip" to the notes printed in Handel's score, the result sounded
like a marriage between an Ives evocation of rural New England on the Fourth
of July on the one hand and a rabble of winos playing around in a music store
on the other.

I vaguely recall this recording being mentioned some years ago in an earlier
version of the tuning list. So perhaps some kindly soul will refresh my
memory as to the orchestra, conductor, and maybe even label of this recording.

Mark Manning, Seattle <TandMark@aol.com>