The Music Center of Los Angeles County has merged its two subsidiaries, the Music Center Operating Co. and the Music Center.

Although the Music Center’s resident companies — the Los Angeles Philharmonic, the Center Theatre Group-Ahmanson Theatre, the Mark Taper Forum, the Los Angeles Opera and the Los Angeles Master Chorale — will run independently of each other, center board of directors chair Claire Rothman sees the unanimously approved merger as proof that “we are making an outstanding institution even better.”

Jointly chairing the newly streamlined organization until the end of the year will be Rothman and Music Center board of governors chair Andrea van de Kamp. An executive committee, formed from the two merged panels, will soon elect next year’s slate of officers and initiate a search for a new prexy.

“This momentous vote ensures that the people of Los Angeles County will receive the finest in performing arts and arts education,” Rothman said. “The new organization will enable us to better serve both our patrons and our supporters.”

Before the move, the Music Center’s two components, TMCOC and TMC, supervised day-to-day operations and fund-raising efforts, respectively.

The Music Center’s fourth venue, the Walt Disney Concert Hall is expected to be completed during the 2002-2003 season.