Musicals about gangs

1928 musical play by Bertolt Brecht; adapted from John Gay's 18th-century ballad opera The Beggar's Opera with music by Kurt Weill and insertion ballads by François Villon and Rudyard Kipling

American musical with a book by Arthur Laurents, music by Leonard Bernstein and lyrics by Stephen Sondheim

Oliver! is a stage musical, with book, music and lyrics by Lionel Bart. The musical is based upon the 1838 novel Oliver Twist by Charles Dickens.

1929 three-act musical comedy by Kurt Weill, Elisabeth Hauptmann, and Bertolt Brecht