and notable instrumentalists increased, as did their geographical distribution. Sample Jewish 20th-century composers include Arnold Schoenberg and Alexander von Zemlinsky from Austria, Hanns Eisler and Kurt Weill from Germany, Viktor Ullmann and Jaromír Weinberger from Bohemia and later the Czech Republic (the former perished at the Auschwitz extermination camps), George Gershwin and Aaron Copland from the United States, Darius Milhaud and Alexandre Tansman from France, Alfred Schnittke and Lera Auerbach from Russia, Lalo Schifrin and Mario Davidovsky from Argentina and Paul Ben-Haim and Shulamit Ran from Israel. There are some genres and forms of classical music that Jewish composers have been associated with, including notably during the Romantic period French Grand Opera. The most prolific composers of this genre included Giacomo Meyerbeer, Fromental Halévy, and the later Jacques Offenbach; Halevy's La Juive was based on Scribe's libretto very loosely connected to the Jewish experience. While orchestral and operatic music works by Jewish composers would in general be considered secular, many Jewish (as well as non-Jewish) composers have incorporated Jewish themes and motives into their music. Sometimes this is done covertly, such as the klezmer band music that many critics and observers believe lies in the third movement of Mahler's Symphony No. 1, and this type of Jewish reference was most common during the 19th century when openly displaying one's Jewishness would most likely hamper a Jew's chances at assimilation. During the 20th century, however, many Jewish composers wrote music with direct Jewish references and themes, e.g. David Amram (Symphony – "Songs of the Soul"), Leonard Bernstein (Kaddish Symphony, Chichester Psalms), Ernest Bloch (Schelomo), Arnold Schoenberg, Mario Castelnuovo-Tedesco (Violin Concerto no. 2) Kurt Weill (The Eternal Road) and Hugo Weisgall (Psalm of the Instant Dove). In the late twentieth century, prominent composers like Morton Feldman, Gyorgy Ligeti or Alfred Schnittke gave significant contributions to the history of contemporary music Popular music The great songwriters and lyricists of American traditional popular music and jazz standards were predominantly Jewish, including Harold Arlen, Jerome Kern, George Gershwin, Frank Loesser, Richard Rodgers and Irving Berlin. Dance Deriving from Biblical traditions, Jewish dance has long been used by Jews as a medium for the expression of joy and other communal emotions. Each Jewish diasporic community developed its own dance traditions for wedding celebrations and other distinguished events. For Ashkenazi Jews in Eastern Europe, for example, dances, whose names corresponded to the different forms of klezmer music