I have gotten steadily more into experimental music over the past decade or so, entering the genre via post-hardcore and Sonic Youth-style experimental rock. I don’t go to see live experimental stuff as often as I’d like, though there is a fairly thriving experimental scene in DC. For one thing, it’s hard to drag along friends to watch people make droning noises for half an hour. Last Friday, 5/8/09, I went to the Warehouse to check out the DC Listening Lounge ‘s Sound Scene show called “The Hum…