mumush is a multi-day outdoor festival held in the valley of adrianu mare, in transylvania, running annually each august since its first edition in 2021. now in its sixth edition, it is rooted in a community ethos built around nature connection, self-expression, art, and sustainability. the site and programming reflect that orientation, combining music with workshops, creative jams, and open conversation.

past editions listed on goabase show a psy-oriented lineup spanning psytrance, progressive, and downtempo, with acts drawn from the romanian and wider eastern european scene alongside international guests. the festival's name draws from the hungarian word for the bogeyman, and its recurring concept frames the gathering as a space for confronting and releasing fear through creativity and collective presence.