You have to understand, you may NEVER get an answer to your question. 'Hold' music, something that is going to be played CONSTANTLY, over and over is often written specifically for a corporation, and all the rights waived by the writer so the corporation doesn't have to constantly pay mechanical and other rights.
'Make it sound a bit like such and such' is often all the writer gets, he'll do something quickly, and that's the last you ever hear of it...
I remember years ago up in New York a couple of instances where I played on things like that. Often the tune never even HAD a title, simply a number, or something prosaic like that...
_________________________
An arranger is just a tool. What matters is what you build with it..!