When The Big Bang Bar opened its doors in January, it filled a void that fans have felt since the passing of Howl at the Moon Saloon. Now, Big Bang is the city's "only all request, sing-along rock 'n' roll dueling piano bar."

When The Big Bang Bar opened its doors in January, it filled a void that fans have felt since the passing of Howl at the Moon Saloon. Now, Big Bang is the city's "only all request, sing-along rock 'n' roll dueling piano bar."

It's a full-circle connection for the creators of Big Bang, Sam Leatherwood and Meredyth Muller. They're both Howl at the Moon veterans, having worked for the national chain before opening their own club in St. Louis in 2001.

Both have a long history in the dueling piano circuit. For 10 years, Leatherwood was the director of entertainment for multiple Howl at the Moon locations. He met Muller while she was general manager at the San Antonio location.

Their newest Big Bang location, located beneath Gordon Biersch in an Arena District basement, has a no-frills, rock 'n' roll feel with scuffed concrete floors and a slightly crowded stage housing two pianos, a drum kit and all the other instruments needed for a night's performance.

"This is a great, high-energy live music venue," said GM Ben Hirons. "There is no stopping ... come in whenever you want and there will be live music."

The music begins shortly after opening, with a rotation of four to five musicians singing and playing multiple instruments throughout the night. The musicians know most rock hits from the 1950s to the present and have begun to expand their repertoire with modern hip-hop tracks from M.I.A and OutKast.

The wide range of pop songs brings in a diverse crowd - college students partying on weekends, a more reserved and casual audience during the week.

The considerable space has plenty of tables, each with pens and napkins for writing song requests. The two large, wooden bars have multiple bartenders slinging drinks, but the cocktail staff is always on hand for table service, and to pass along those requests.

Big Bang has a hefty selection of both domestic ($4) and import ($5) bottles to choose from, as well as Miller Lite and Bud Light on tap for $3.50 and Guinness, Sam Adams, Blue Moon and Columbus Brewing Company Pale Ale drafts for $4.50.

On busy nights, when the music gets lively, the staff in their "Bang This!" T-shirts will get into the act and break into a rehearsed dance routine on the stage or bar tops. As Hirons said, "It's great for the energy of the room."