As a general rule (there are always exceptions) sending recordings to labels won't get a listen. If you can find a manager with connections, then you have a better chance.
Oh but don't you need music to get a manager too? Lol wouldn't they want to hear something before they agree to becoming your manager? Sorry I'm noob lol
But seriously, each label has their own requirements. The big boys require you to approach them through an entertainment lawyer. One of their choosing.
Hmm, now you got me thinking. My songs have moved up from hideous to unbearable.... maybe I should send some to the labels as well...
Nahhh