After a performance, I like to have a little talk with myself or with my students about how things went. Here are some examples of questions to ask:
- Were there any breakthroughs? New accomplishments? Higher levels of performance than previously achieved? If so, what contributed to these successes?
- Was there any backsliding? Things going worse than in previous performances? Why?
- How was your mental state before and during the performance? Did it have an effect on how you sounded? What aspects of that can you control?
- How was your physical condition before and during the performance? (Tired? Hungry? Sore?) Did it have an effect on how you sounded? What aspects of that can you control?
- How was your preparation? Is there anything you would do to prepare differently or better next time?
- What feedback, spoken or otherwise, did you get from your audience? Should, or does, that color your evaluation of your success?
- Is there a difference between your objective evaluation of the performance and how you really feel about it? Why? Is this significant/important?
- Is there a recording? Were there any surprises when you listened to it?
- What do you hope to build upon, improve, or otherwise change for your next performance?
Some post-performance reflection on both positives and negatives can be valuable for setting new goals and preparing for the next one.