Welcome to this digital edition of Phillip Huscher's Program Notes for upcoming concerts by the CSO Apr 28-30. Former CSO Principal Conductor Bernard Haitink returns to Symphony Center with a program including Till Fellner as soloist in Mozart's sunny Piano Concerto No. 22. Haitink, an eminent Strauss conductor, also leads the Orchestra in a majestic performance of Strauss' epic An Alpine Symphony.