EN[...] In the final chapter of the monograph From musical theater to opera without theatre, Vita Gruodytė argues that engagement and socially active participation of the artist in the present, with the aim of both involving the audience in the creative process and inspiring them, provoking their responses, and granting them with the status and value of autonomously thinking participats of the said process, has been increasingly important to the creators of the early twenty-first century. Pradodixally, the avant-garde inspirations of the period of political change were extended by the New Opera Action (NOA) movement born in 2008. Through the expansion of the boundaries of the twentieth century avant-garde directions, NOA turned out to be an authentic product of its own era, a reflection of the strengthening urban culture, the speed of life, difital technology, and adaptation of art to the environment. [...].