This is the *Solo de Concert* by Gabriel Pierné (1863-1937), op. 35, cf. [Youtube recording][1], right the start of the bassoon part, sheet music is available at [IMSLP][2].


  [1]: https://www.youtube.com/watch?v=MEwhnAQfvS0
  [2]: http://imslp.org/wiki/Solo_de_concert,_Op.35_(Piern%C3%A9,_Gabriel)