Richmond, Virginia:

The Richmond Times-Dispatch, the local daily newspaper in Richmond with a Sunday circulation of 120,000, is owned by BH Media, a subsidiary of Warren Buffett's Berkshire Hathaway company. Style Weekly is a standard weekly publication covering popular culture, arts, and entertainment, owned by Landmark Communications. RVA Magazine is the city's only independent art music and culture publication, was once monthly, but is now issued quarterly. The Richmond Free Press and the Voice cover the news from an African-American perspective.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". Before switching to its current publication schedule, how often was RVA Magazine published?
monthly