Well, sometimes they get heard. There are some deciding factors...

Most labels will not take unsolicited materials (too risky legally.) So a call has to be placed and permission granted to even send your materials. The person asking for permission is important too. If you have a manager or lawyer, chances are good you'll at least get past Go.

This business is so relationship based. And, sometimes, your record might get to A&R REP ONE and it's not what they need to sign but they might peep it to another department. It's so hard to say.

It's BEST to gain so much momentum on your own that labels are looking for YOU - or have a showcase and invite them to one of your gigs - get them to offer pens. The more offers you get at once, the more leverage you have at the bargaining table.