When the average fan thinks of hotbeds of the Blues, he or she thinks of cities like Chicago, Austin, and Memphis, and even such far-flung outposts as London and Paris. That’s all set to change, however, as red-hot Brazilian guitarist Big Gilson (Video Of The Day), a TopCat Records artist, is poised to put Rio de Janeiro on the Blues map tonight, with Blues Dynamite UK, at the Tuesday Night Music Club, The Comrades Club, Coulsdon CR5 2NF.