Two Days and Two Nights of New Music
Two Days and Two Nights of New Music (Ukrainian: Два дні й дві ночі нової музики) or 2D2N (Ukrainian: 2Д2Н) is an annual 48-hour music festival held in Odesa, Ukraine. The festival features new music from both Ukrainian and international artists, mostly in the experimental music genre.
Source: Wikipedia — Two Days and Two Nights of New Music (CC BY-SA 4.0)