Affirming Victor DeLorenzo's status as perhaps the most musically adventurous of all the Violent Femmes, the drummer's new project, Prestige Atlantic Impulse, is an experimental jazz trio worlds removed from the Femmes' signature folk-punk. Though that "experimental" tag may alienate those already disinclined to jazz, Prestige Atlantic Impulse's concoctions are direct and immediate, with the curiously gritty bass sounds of Jason Wietlispach (the host of a modern classical music show on WMSE) juxtaposing against the frantic, Grant- Green-on-uppers guitar work of Alex Stewart. Tonight the trio plays one of its free monthly gigs at the Sugar Maple.