I know that I haven't given you much music recently, so here's a song that I wrote and performed for my harmony coursework...
The requirements were to write a piece of diatonic music, whilst trying to fit in some of these features...
Tritone Substitutions (didn't manage this one)
It's called 'Rain on the Avenue'...please let me know what you think! :)
P.S - There are some more originals in the pipeline, but I have a cold at the moment so can't record them. :( Doh.