Here are one of the two emotions you might feel:
1. Joy - you've done everything in your power to make it remarkable.
2. Disappointment - you got lucky (this time).
Sure, some of us are more talented than others, started earlier, have more experience, and a better technique which might get us through the difficult situations with confidence and grace.
This does not extinguishes our curiosity of how much better we could have played and connected with the listeners or congregation, if we did all the homework the right way.
Luck isn't everything. Honesty is.
[Thanks to John for inspiration]
Der Sumer (p. 27) from Buxheimer Orgelbuch (ca. 1450), a German Renaissance collection of organ music.
And Can It Be