A poorly ripped, grainy low quality mp3 that sounds vaguely like a song you heard once in some kind of office elevator plays, that is 23 seconds long, but is looped for a 30 second timer, then theres an unnaturally long pause before the "your call is important to us" message plays, completing a 1 minute time cycle.
The music starts again.
No, the company that played this, that I remember such an exact shitty hold, does. I wish I could remember the name of the company too - I hate them so much for this. The fact you get the first 7 seconds of the song a second time, followed by the pause that makes you think someone picked up has got to be the most rage-inducing thing I have ever heard.