|For the record, V and I didn't dress up|
Not just any duet: "Bei Männern" from Mozart's Magic Flute. Where Pamina (a princess) and Papageno (a birdcatcher), still lacking their intended but off-stage lovers, sing yearningly that "it is through love alone that we live".
Quite, quite difficult, but then, uxorially, it's a sentiment I feel I can share:
Its (ie, love's) high purpose clearly proclaims
There is nothing nobler than woman and man,
Man and woman, and woman and man
But something must be resolved. Soprano and baritone sing different tunes simultaneously: V's voice is more tuneful, powerful and confident; even throttled down it can pull my less positive voice off-track.
So V starts off humming.Things combine and she switches to quiet lyrics. I'm still in tune. V's volume increases and I continue to sing what I'm supposed to. At the end we're both going full blast. Ah, yes.
Ironically the listener gets the best deal, hearing the two voices united. For me I recognise the voices are in step but (given a head full of my music) they are separate.
A recording is technically beyond us. Here's how it should SOUND.