Twenty years earlier, Rodgers was not so pleased when, at the request of the star Belle Baker, Berlin had written a song for her to interpolate into an otherwise all-Rodgers-and-Hart score for the Broadway musical "Betsy."
-- Richard Corliss, "That Old Feeling: A Berlin Bio-pic", Time, December 30, 2001
The staging is by Peter Konwitschny, one of Germany's most progressive directors, and the controversy derives from his decision to interpolate an on-stage disruption that breaks the score at a crucial moment and leads to an additional scene of dialogue.
-- Tim Ashley, "Wagner interrupted", The Guardian, November 23, 2002
A new cover might be designed to replace the original one if a song sold well enough to warrant further printings, however, particularly if the piece had been taken up by a popular performer or interpolated into a show.
-- Charles Hamm, Irving Berlin: Songs from the Melting Pot
To that end, contends Judis, echoing the Progressive-era founder of the New Republic Herbert Croly, we need strong, multifaceted federal institutions that set rules, impose limits, and interpolate themselves into nearly every sphere of society.
-- Chester E. Finn Jr., "The Paradox of American Democracy", Commentary, March 2000