Huh? If your offspring are old enough to download music, why can't you get them simply to lurk in the main forums here and come up with a shortlist for you? Why should you have to go insane at all?
In any event it's really not that difficult for anyone to get a table of the ISPs that are rated according to persons' satisfaction. Having 8250 ratings is quite a nice start:
http://www.dslzoneuk.net/isp_ratings.php
If anything, be extra wary of anything to the right of Newnet on that table. That's the best hint you'll get from me. The current state of UK adsl is such that throttling is really killing the party.
Please keep quiet about the ISP that you choose as an ISP can literally fall within weeks if a swarm of heavy downloaders descend on it. Newnet e.g., had to radically raise its prices to 'shake its tree' recently just so that some of its bandwidth would be unchoked.
Price rises or throttling are the only options open to ISPs to cope with demand as Bt Wholesale still haven't budged on outdated prices while demand for higher bandwidth among consumers has grown exponentially. If people didn't put up with throttling then ISPs wouldn't do it - they'd just raise prices. The problem is that too many people look no further than the deceptively bargain prices for so called 'broadband' when in many case they'd be better off with narrowband - so much has their connection been throttled. And they'd save the most too. Sigh...