Via his blog, Paul Lamere is conducting an online survey in how people rate the suitability of different recommendations for fans of, variously, The Beatles, Miles Davis, Deerhoof and others. If you have ten minutes to spare, please consider completing the survey for at least one of these 'seed' artists, which will inform the tutorial that Paul and Oscar Celma are giving at the Music Information Retrieval conference in a couple of weeks' time.
I hope the results (and conclusions from them) will be shared more widely than just the tutorial. I completed the survey for the The Beatles and for Miles Davis. One of the things about these artists is, of course, that their output was so multi-faceted that it links in many different directions: fans of Kind of Blue-era Miles quite possibly won't like the same kind of music as fans of his 1970s work. Also my ratings of Beatles recommendations may be skewed by the fact that I know little of their pre-1967 albums (and am not a big fan of their post-'67 ones!). I thought I detected one or two 'trick questions', but I won't say any more at this stage, lest I bias the way you complete the survey.