Something we have done on another forum for a few years (and I suspect we borrowed the idea from elsewhere, so it may not be a new idea to people here) is to make a mix of music, strip the data off it, and share it with someone else
They then review the music "blind", unless they recognize any of it
Someone volunteers to run the operation, everyone sends their mix to the organizer, who distributes them around. No one knows who has compiled the mix they are listening to, unless they can guess. Great way to find new music but I'm not so sure it would work as well here, tastes in music might be too disparate
I'm currently running one on The Fall Online Forum
EDIT - Once someone has published their review, the compiler reveals the song and artist, and any other information they might think the listener is interested in.
The reviewer usually states their favourite song, and a "best of" is compiled