Wondering how to promote your pieces for organ that you composed yourself?
This is a very difficult task for the unknown composer because let's face it, not too many organists' first thought in the morning is "I wonder, if I'll meet some unknown composer today, get some new music from him, and start to play his music and promote him."
But a good idea for the public performance would be to include a few of your best original pieces among works of classical organ repertoire. It would be like saying "by the way, if you like this kind of music, I think you'll enjoy my compositions too."
Then you may find that some organists who'll hear you play will actually ask for your scores.
[Thanks to Irineo]