I cant wait for you to read it!
That is a very strange dream. there is a school of thought that likens the trumpet or indeed any brass instrument to the closed loop of time in which we inhabit. When someone plays a brass instrument in a dream the signal is being sent to the dreamer that time for us is a closed loop but we can be heard beyond this if we try hard enough.
I made that up, but it was glorious :O)
That's interesting... although I'm still thinking about that dream.