Back in 1982, when Ozric Tentacles were making their name on the English festival circuit, they seemed like a throwback--the last gasp, perhaps, of the grand, gently weird British space-rock tradition. But traditions like that have very, very long institutional attention spans, and so with 24 years of personnel changes behind him, guitarist-keyboardist Ed Wynne is still steering his unwieldy ship on its never-ending voyage, powered by the steadfast love of European hippies. Over time the Ozrics have subjected their highly technical but playful cosmic jams--think Gong and Caravan--to ongoing updates, weaving in acid-jazz and techno elements, but their sound always instantly regrows its vine-covered trelliswork of hallucinatory nostalgia. This tour celebrates the imminent release of The Floor's Too Far Away, the band's 22nd album (counting reissues of early fan-distributed cassettes), but on message boards the faithful are still mourning the departure of charismatic flutist John Egan (aka Champignon), a fixture since 1988 who reportedly got kicked out last summer. Dub Trio opens. Fri 6/30, 9 PM, Park West, 322 W. Armitage, 773-929-5959 or 312-559-1212, $18 in advance, $20 at the door, 18+.