I think you mean bassoon.  I like the jaggedness and the off kilteredness of the meter changes.  Some memorable moments indeed. An idea might be to give that bassoon a little more in way of articulation: secco.I liked the ending! This is less tonal music than I recall you writing, David. 

Thanks. I originally wrote this for pno and cello, but on re-visiting it, I wasn't getting the strong jaggedness from the (sampled) cello. I did intentionally choose the bass clarinet to get the staccato and range of timbre & articulations (Garritan Aria Player bass cl library); I agree even more variation in articulation would be good; always a challenge to squeeze it directly from the Notion score... :)

Delightful. Thanks for the download.