Since all the Kool Kids do fun things on Friday, I thought I would join in. But to be even more kool, I procrastinated and have it in a day late. I find that some music is fun to listen to, but not so fun to perform. Other music is a blast to perform, but rather boring from the audience's perspective. My example of the latter is Bruckner's Symphony No. 4. I had fun performing this, but find it too long and repetitious. Examples of the former are mostly limited to piano pieces that are beyond my technical ability. I can trudge through many of Beethoven's piano sonatas, but the development sections can become quite tedious as I struggle with diminished arpeggios. But listening to Alfred Brendel or Edith Vogel breeze through the same passages is a true joy.
What are your examples?