Even though Washington, DC isn’t Canada’s capitol, it’s pretty hard not to see politics as that city’s principal export. But if you dig a little deeper, DC has another important legacy: music. And we’re talking some serious street cred, here. Duke Ellington, Marvin Gaye and Roberta Flack. Henry Rollins cut his teeth there before heading to California and Black Flag. Bad Brains, Fugazi and Dischord Records. Deep Dish, Thievery Corporation and ESL Music