This is a curiosity!
Now, I have far from 'perfect pitch/ exact intonation' - but this LP is truly excruciating; reminding me of lunchtime concerts from (unauditioned, unrehearsed) orchestras of students
From Händel: Orchestral Works - Part 1/3 - Water Music
Recorded 1974 - La Grande Ecurie & La Chambre du Roy
conducted by JEAN-CLAUDE MALGOIRE
Go to Part I: WATER MUSIC (Complete)
VIII. Minuet (21:49)
to get the full flavour of the thing.
It is utterly incomprehensible to me how this recording was released - but presumably there was an interesting story somewhere.
It may be that people were making (ahem) 'allowances' for the musicians playing on original instruments - presumably natural/ unvalved French Horns etc.
(In the seventies I sat through a few rather similar debacles at live performances featuring natural trumpets - Bach concerti, Cantatas, Passions and the like. It was important to know the piece well, so as to understand what the musicians were 'getting at' - otherwise it sounded like Charles Ives on a bad day.)