As I noted in my column last week, the Chicago Independent Radio Project started webcasting yesterday. You can and should tune in at chirpradio.org. In the hour or so I’ve been listening they’ve covered everything from indie hip-hop to ESG to a cut from PJ Harvey’s 4-Track Demos, and lags in the stream are impressively infrequent and short. The celebration of the CHIRP’s launch continues tonight at the Whistler, where Caboladies and CHIRP DJs spin; there’s no cover, and a 15 percent cut of the bar receipts goes to benefit the station.