When Professor Henry Higgins wagers he can transform a Cockney flower girl into an aristocratic lady, he never guesses that Eliza Doolittle will in turn transform him. The Lerner and Loewe’s classic musical features such enduring favorites as “I Could Have Danced All Night,” “Wouldn’t It Be Loverly,” “The Rain in Spain,” “On the Street Where You Live,” and “Get Me to the Church on Time.”