Many years ago I was party to the purchase of an exquisite jingle package for (then) WXTR which was styled "The Wonderful World of Music".
The instrumentals (there were many) were lush and lovely.
Unfortunately the vocals were recorded at Union Tonen Studio in Munich.
Munich, Germany.
The voices were incredibly good but "Vonderful Vorld of Music" somehow seemed out of place.
When I was last there visiting, about 1985, the 15" original reels of the jingle package was still in a metal cabinet in the lower level production room. Since then that part of the building (according to photos posted online) has been torn down but, who knows, those old tapes may still be somewhere in the building!
Treasure hunt, anyone?