John A. Carey is executive vice president at Pioneer Investment Management, where he has worked since 1979.   John’s daughter Julia Carey was one of the first members of Juventas.   Other organizations with which John has worked in a volunteer capacity include Longy School of Music, Musicians of the Old Post Road, and Cambridge Early Music Society.   He holds a B. A. from Columbia University and an A. M. and Ph. D. from Harvard University.