Music teacher Dave Hart invited Bay Area woodwind ensemble Frequency 49 to his middle school classroom on Thursday to show his students how chamber music is performed by professional musicians. The students, who had been creating chamber music compositions in class, watched as the members of the sextet – pianist Margaret Halbig, French horn player (and Hart’s wife) Leslie Hart, bassoonist Patrick Johnson-Whitty, oboist Adrienne Malley, clarinetist Jeannie Psomas and flautist Katrina Walter – demonstrated the various aspects and techniques of their respective instruments, as well as how the group’s unique configuration allows for flexibility in the sounds they can create. The students were then delighted to hear Frequency 49 perform a rendition of a piece by Francis Poulenc. More info about the group can be found at its website, as well as on Facebook and Instagram!