Musicals at Richter, celebrating its 19th season as the longest-running outdoor theater in Fairfield County, opens its 2003 season with Lerner and Loewe’s elegant and loverly classic My Fair Lady. Since its Broadway premiere in 1956, critics and audiences alike have considered My Fair Lady one of the best musicals in history. With book and lyrics by Alan Lerner and music by Frederick Loewe, this legendary musical adaptation of Bernard Shaw’s Pygmalion begins with a simple wager over a chance encounter, and culminates into the dramatic transformation of Eliza Doolittle, a Cockney flower-seller, into a cultured young woman.