I have to say that the OP is asking a fair bit of the Mudcat Irish speakers - how to pronounce an entire song. Singing in a language you don't speak is possible. Opera singers do it all the time, but the think of the hard work and training they do, and the time they spend listening to other singers. There is no short cut. There are some Irish language songs I would like to do too, but I would find someone who had the skill and willingness to teach me before I trotted them out in public.