I may have brought this up before, but I’d appreciate some more insight since I haven’t quite resolved it.
Secundum morem, I have pronounced my middle name “Amadeus” (a name translated from Greek Θεόφιλος) with four short vowels, and the stress on the “-de-.” I assume our friend Amadeus here does the same in Spanish. But Latinly this should be a contradiction in terms, since a pænultimate syllable may only receive stress if it is long. Moreover, the root in am?re possesses a long second ‘?’, making the logical shift to the antepænult even harder to refute out of hand (e.g. Ăm?dĕŭs).
Can we strain the name such that the ‘e’ is long? — Ămădēŭs — unlike its clear root dĕŭs, having two short vowels.
I read online in a Wiki search that Mozart preferred to write his own middle-name as “Amade” (with the stress “Amadè” inferred). I happened to notice, also, some time ago in early-Modern writings that the vocative of Amadeus is Amadee, as one would expect (despite the ‘awkward looking’ double-e), and, in normal speech, surely it sounds just as Mozart preferred to write his middle name.