I've been mulling this over with respect to practice-- especially in regards to the last mile when trying to get a piece ready for performance. I've been trying to think of useful ways to measuring how I play a piece. As I start, I've been toying with the following kind of metric:
- A) Assign points for different types of flaws (so low scores are better scores)
- 1 point for minor technical issues that an audience likely wouldn't notice-- e.g., a minor buzz, a clipped note, etc...
- 2 points for more obvious technical flaws that an audience would notice-- e.g., a big buzz, wrong notes, getting lost and having to reroute
- 4 points for a flow that disrupts the but doesn't stop the flow-- e.g. forgetting, for the space of a beat or two, what the next phrase is
- 10 points for a horrible flub along the way
- 100 points for a crash that stops the music
Admittedly there a number of problems with this, but even in the little bit of experimenting I've done, it does seem to work wonders for creating focus, and artificial performance pressure.
I'd like to hear from others if they've tried anything remotely like this or if you have ideas to improve it.