This week, host David Latulippe talks with SF Symphony's principal bassoonist Stephen Paulson, who is also Music Director and conductor of Symphony Parnassus, about the upcoming Spring concert of this community orchestra; and with Sergio Assad about the concert with his brother Odair Assad and Cuban clarinetist Paquito D'Rivera for Cal Performances. Plus, critic Joshua Kosman offers his classical picks for the month ahead. Listen to Open Air now or anytime. Original broadcast date: Thursday, April 4, 2013 at 1pm.