> Her vocal timing, phrasing
Right. Beauty in all her work.
> I don't really think of Donna stuff as disco
Right. She was a young star in church, training ground for a lot of singing and playing. Backing Three Dog Night. 8 years in Germany including musical theater. She did a lot of other things later. Disco just happened to be "in" at the time she got wide attention.
"MacArthur Park" certainly isn't Disco (of course for that era it was produced disco-like).
> They didn't really seem like manufactured disco songs to me.
"Love to Love You" is certainly "manufactured" in the sense that it must be assembled from hundreds of scraps of tape laid-down by musicians who were never in the same town together. Giorgio must have spent weeks bulking-up the 3:40 version to 17 minutes. But his inspiration was Donna's demo track.
Like MacArthur Park, L2L is a strange hit. Too long, too raunchy, and too many musical themes.
I know what you mean. There's only 6 or 8 good chart songs a year, any year. The rest of the time has to be filled with by-rote songs. In those days, you put the drum machine on D-7, the bass sequencer on D-3, dash off some dumb words, and riff guitar/synth over it. As creative as Burger King. Hit? Yes? No? After 3 drinks and 7 lines of coke, the audience didn't complain.
BTW: the #1 Billboard Hot Dance the week before L2L was 1940's "How High the Moon" discofied. When new-music has to recycle 35 year old music.....