Entering its 18th season with an eclectic bang, local nonprofit Musical Bridges Around the World showcases a “brilliant parade of exceptionally talented artists” during its International Music Festival, an entirely free celebration spread across two weekends. Sunday's L’historie du Soldat (The Soldier’s Story) adds movement to the musical mix as Avant Chamber Ballet Dallas brings Stravinsky’s cautionary tale to life onstage with accompaniment from pianist Baya Kakouberi, clarinetist Julian Milkis and violinist Gary Levinson