The organizer of a concert in Beijing accused of glorifying the devastating Cultural Revolution (1966-67) through propaganda songs from that period issued a notice Friday saying the co-organizer fabricated a government office in order to win its trust.

During the planning and performance process, the co-organizer of the concert faked a government-related "socialist value publicity office" and fabricated materials to jointly hold the concert with China National Opera and Dance Drama Theater (CNODDT) that was held in the Great Hall of the People on May 2, read the announcement made by the theater on its official website on Friday.

The CNODDT will take legal action against those responsible, the statement read.

The Beijing's Xicheng district cultural commission, which issued a permit for the show on April 7, also published a statement on its website on Friday saying the CNODDT had violated rules by adding a co-organizer during the show on May 2 and faked a "socialist value publicity office." The commission vowed to punish relevant parties.

The announcement came after Ma Xiaoli, daughter of Ma Wenrui, who served as China's Minister of Labor in the 1950-60s, wrote a letter accusing the concert of "commemorating the 50th anniversary of the Cultural Revolution," adding that the concert has "violated Party discipline and should be seriously dealt with."

The 56 Flowers Group, a newly formed patriotic singing group of young women, performed several "classic socialist songs," according to the group's website.

Many people, including Ma, saw the concert as a challenge to the social consensus on the Culture Revolution. The 56 Flowers Group declined to comment about Ma's accusations on Thursday.

During the Sixth Plenary Session of the 11th Central Committee of the Communist Party of China held in 1981, a resolution on "certain questions in the history of our Party since the founding of the People's Republic of China" was passed, in which the Cultural Revolution was criticized as "a long-drawn-out and grave blunder."