 The city says last year almost 78% of 911 calls were answered in 15 seconds or less. Lynn Bowie, WTOP News. It's a music sanctuary in the nation's capital and it's giving musicians a place to practice and teach. It's the focus of this small business spotlight from WTOP's Nick Ionelli. Practicing an instrument at home in a densely populated city like D.C. can lead to noise complaints. It might be seen as an unwanted nuisance.