On September 21, 2000, bassist Mark Helias and Open Loose took the stage at Manhattan's New School University as part of an annual concert series produced by the Jazz Composers Collective. Happily, the tape was rolling and this superb CD is the result. The aptly named trio features tenor saxophonist Tony Malaby and drummer Tom Rainey. Helias pilots the group with a selfless spirit; his compositions walk a fine line between structure and freedom and any of the three instruments can take the lead or recede into the background at any time. Lurching unpredictably between stirring cacophony and wily precision, Open Loose rewrites the rules of jazz trio interaction even as they summon a sound rooted in jazz tradition. Highlights include the driving quasi-funk of "Mapa," the unison themes and frequent tempo shifts of "Startle" and "Pick and Roll," and the moody ballad "Gentle Ben."