QUOTE(George Burrell @ Jul 25 2006, 05:11 AM)
Help me someone..
I have heard at least one Mendelssohn duet at a wedding. He is the ideal type of composer for this combination.
A few years ago I sang a set of Mendelssohn duets for soprano and mezzo that were lovely and may be what you're thinking of. It was op.63 and we sang them in German, the title of the first one we performed was "Ich wollt' meine Lieb' ergÃ¶sse sich" (or it also came with an English translation - "I would that my love"), and also in the set was "Gruss", and "Herbstlied".
I think there is a screenshot of "I would that my love" on musicroom.com so you can have a look and see if it's what you're looking for.