The former count on song and dance, music and spectacle for their appeal, while the latter are popular with critics and the middle classes on the strength of dialogue and acting. In both cases, the tendency is to avoid experimentation and stick with proven dramatic form.
演出形式則以音樂劇和戲劇為大宗，前者以音樂、歌舞和富麗堂皇的佈景為號召；後者雖然是以演員對白和動作取勝，卻還是常被批評為中產階級賞心悅目的場所；其劇場美學、政治意識、工作方式和演出技術，都偏向維護現狀。