Ciosoni–Esperanto for “sounds of all kinds”–is an unusual chamber trio devoted to the music of our time. The odd combination of clarinet, flute, and double bass makes for a team in search of a repertoire, but the trio’s technical prowess and rising renown are piquing the interest of a diverse group of venturesome composers. Already it’s established a solid reputation as a sympathetic interpreter of works as wide-ranging as those of Cage, Charles Wuorinen, Frederic Rzewski, Ben Johnston, and Sal Martirano. And at least two of Ciosoni’s members write music for their instruments. Eric Mandat, the clarinetist who made a splash at the New Music Chicago Festival a couple of years ago, teaches at Southern Illinois University and has composed works for the solo clarinet. Bassist Michael Cameron is also well-known as a concert soloist, a professor at the University of Illinois at Urbana, and a recording artist whose works are often credited with drawing attention to the much-ignored instrument. Ciosoni’s flutist, Tim Lane, used to play with the Cleveland Orchestra (under Lorin Maazel) and now performs with several contemporary and Baroque ensembles; he’s also a midwestern professor, based at the University of Wisconsin at Eau Claire. Ciosoni’s concerts at Southend Musicworks this weekend promise to be eclectic and freewheeling. One highlight will be the performance of Phantasmagoria by the little-known west-coast composer Wayne Peterson, whose receipt of this year’s Pulitzer over Ralph Shapey sparked a controversy; the programs will also include some jazz. Tonight and Saturday, 8 PM, Southend Musicworks, 1313 S. Wabash; 939-2848.