One of my piano groups did an interesting project - Tag Team Mozart. One of the teachers divided up a Mozart Sonata movement, and we all signed up for a section - about 16 measures each. The place where we play has two pianos side-by-side. The first player started, with the next player at the other piano, and so on until all done. The first time we tried it it went well, because the tempo was moderate. The next month the first player started way too fast and most of us fell apart!