PHMG's study involved an "audit" of 127 companies (in other words ringing them up) and found that 65 per cent of IT firms still leave customers listening to nothing but generic music, while 14 per cent subject callers to beeps, 9 per cent leave them in silence and 3 per cent just ring at them.
Not exactly a huge number of companies to base your PR on.
"Can you imagine if a generic piece of music being inexpertly applied to a company's brand image, such as, say, Michael Bolton's Can I Touch You... There? The consequences could be disastrous."
I would assume you have some kind of control over what is played. If not then why would you have signed up to that in the first place.
Personally I don't care if it's silent, beeps, music, or PR drivel just don't leave me on hold for 30 minutes or more telling me my call is important to you every few seconds or telling me I can go on line to your crap website. The reason i'm calling is probably because you can't do what I want to do on your website.