One crucial difference between Träd, Gräs och Stenar and other communal collectives of the time (YaHoWha 13, Captain Beefheart and the Magic Band, the Sun Ra Arkestra) was their leaderless nature. With no particular member in charge, their music has a refreshing lack of ego; it feels like the only thing steering the ship is the momentum created by playing together. Though some guitar parts resemble solos, they rarely dominate. All the riffs merge into a mutli-colored swirl, and the band digs into each repetition like coal miners chipping away in unison. Over 40 years later, this all-for-one approach still resonates in the far-flung forays of collectives such as No-Neck Blues Band, Bardo Pond, Acid Mothers Temple, and Eternal Tapestry. Since such emergent music is all about the moment, Träd, Gräs och Stenar's best work came in live performance. Though they debuted with a self-titled 1970 studio album, their subsequent two live records cemented their legend. The music on 1971's Djungelns Lag (The Law of the Jungle) and 1972's Mors Mors (Hi, How Are You?) was captured in locales as diverse as an airfield, an autonomous Denmark commune, and a meadow next to the Vindeln river. Some tunes have studio-level clarity, revealing acoustic strums, rhythmic handclaps, and vocal chatter, while others are as murky as bootlegs. Both of those styles fit the band's vibe, which could be simultaneously precise and unruly, bold and mysterious. That vibe is strongest on Djungelns Lag, which feels as open and diverse as the universe, and as big too (see the consistently-compelling, 34-minute "Amithaba In Kommer Gösta").