(from pictureisunrelated.com; may not be suitable for all viewers)
What does it mean for a performance to fail (or to be considered a failure)? Can a performance be considered a success if there is one wrong note? Five wrong notes? Flagrant disregard for the composer's intention (I'm deliberately handing you the can of worms...)? An inability of the performer to live up to his or her own personal expectations and abilities? Is it even possible for a performance to fail? Might we distinguish between a failed improvisation and a failed realization of a work?
If you don't know the piece "Failing" (a very difficult piece for solo double bass) by Tom Johnson, submitted for your approval is the inimitable Gary Karr performing it.