Question: Would the competition Bundeswettbewerb Gesang Berlin be held for the genres of light opera in even or uneven years?

Related documents: [0]  [DOC] Operetta is a genre of light opera, "light" in terms both of music and subject matter. [END] 
[1]  [DOC] The German national competition Bundeswettbewerb Gesang Berlin was inaugurated in 1966 as a competition for solo singing. Beginning in 1979, it has been held annually, for the categories Musical and Chanson in uneven years, for Opera, Operetta and concert singing in even years. The patron of the competition is the mayor of Berlin, where the competition is organized and held by the association "Bundeswettbewerb Gesang Berlin". [END]  
Answer: uneven years
uneven years