This weekend culminates on April 20th, 4:20 even, and it’s no surprise than many of Austin’s inhabitants aim to celebrate this cultural holiday in fine fashion come Sunday. But before we get to that lofty milestone, local lawyer and musician Charlie Roadman hosts the Third Annual Marijuana Law for Musicians seminar on Friday at The Mohawk. The presentation is free and starts at 7 p.m. Come find out what you can get away with in Travis County and also sign up for a chance to win two free Radiohead tickets for their show in Dallas on May 18th....