They're called the Instant Composer's Pool Orchestra. Included in their number are their co-founders, a couple of the truly venerable figures in European avant jazz: pianist and composer Misha Mengelberg and drummer Han Benink. They've been in the business of being jazz provocateurs for 40 years, which is why they're now on a triumphal 40th anniversary tour.
You can expect to hear in their music everything from sumptuous post-Ellington tunefulness to instrumental splatter and pointillist blip blop -- often of the joyful post-Ellington variety. Think Sun Ra, without the R&B from the inner cities of Saturn.
The musical explorers at Hallwalls haven't been in the business of blasting away borders for as long as the ICP Orchestra, but they are nothing if not faithful to the cause. So here, 12 years after its last Hallwalls appearance, the ICP Orchestra will bring its 40th anniversary tour to Asbury Hall at the Church, 341 Delaware Ave, at 8 p.m. Saturday.
Admission is $5, a pittance for such sterling and merry musical inhabitants of jazz's outermost precincts.
-- Jeff Simon