March is when many orchestras announce their lineup for the following season. Traditionally, music directors of major American orchestras concentrated on the three B’s, conducted a lot of M and dabbled in a couple of H’s. Bach, Beethoven, Brahms, Mahler and Handel and Haydn were the core of the orchestral literature. “But in an average Tilson Thomas season, one of the B’s may be Bernstein or Berlioz rather than Brahms, the M is more likely to be Mahler than Mozart; the H will probably be Lou Harrison, rather than Haydn or Handel.” – San Francisco Examiner