We're currently trying to play the first movement of Beethoven's duet No. 1 (originally written for clarinet and bassoon, but we're adapting an adaptation for violin and viola). Here's the score I've prepared - all the notes are there now (I hope), but dynamics aren't quite complete yet (requires Flash -but I can email PDF file on request):
As of 2021, the Flash thing no longer works at least on my computer, but this link should take you to the score, and you can look at it without being registered with noteflight.
If you click play above, you'll get a computer-sound version - but here is how it should sound like when it's played by proper musicians.
PS: an amazing and growing list of repertoire for cello and flute is here.
PPS: We played this at the Oxford Music Festival in January 2013. The adjudicator used words like "brave" and "challenging" a lot, but we made it to the end, so I count that as a success. We're now moving on to the third movement of the same piece, which appears to be a little bit easier (hoping I can get my head round the triplets). After writing up around 40 bars, I realised that a version of Movt. 2 and 3 playable with our instruments is actually published in the book:
Duets for Violin and Violoncello for Beginners, Vol 2
(Arpad Pejtsik & Lajos Vigh, eds.)
Editio Musica Budapest Z. 14062
so we'll work with that at the moment, maybe finish the draft on noteflight later.