Question: Who wrote the lyrics of Portofino with a collaborator on "Fiddler on the Roof"

Context articles: Fiddler on the Roof
Green Violinist
Tutte Lemkow
Alexandra Silber
Cannonball Adderley's Fiddler on the Roof
Portofino (musical)
A Shoggoth on the Roof
David Pevsner
Sheldon Harnick
Fiddler on the Roof (film)

Fiddler on the Roof is a musical with music by Jerry Bock, lyrics by Sheldon Harnick, and book by Joseph Stein, set in the Pale of Settlement of Imperial Russia in 1905.
 It is based on "Tevye and his Daughters" (or "Tevye the Dairyman") and other tales by Sholem Aleichem.
 The story centers on Tevye, the father of five daughters, and his attempts to maintain his Jewish religious and cultural traditions as outside influences encroach upon the family's lives.
 He must cope both with the strong-willed actions of his three older daughters, who wish to marry for love – each one's choice of a husband moves further away from the customs of his faith – and with the edict of the Tsar that evicts the Jews from their village.
"Green Violinist" is a 1923-24 painting by artist Marc Chagall that is now in the permanent collection of the Solomon R. Guggenheim Museum in New York City.
 The work depicts a fiddler as the central figure who appears to be floating or dancing above the much smaller rooftops of the misty gray village below.
 This work is often considered to be the inspiration for the title of the 1964 musical Fiddler on the Roof.
Tutte Lemkow (28 August 1918 – 10 November 1991) was a Norwegian actor and dancer, who played mostly villainous roles in British television and films.
 His chief claims to mainstream familiarity were his roles as ""the fiddler"" in the film version of "Fiddler on the Roof" and the old man ("Imam") who translates the Staff of Ra for Indiana Jones in "Raiders of the Lost Ark".
Alexandra Michelle Silber (born July 3, 1983) is an American actress, singer, writer and educator.
 She has performed roles on Broadway, in London's West End, on television and film, and concert stages.
 Among other stage roles, in London, she created the role of Laura Fairlie in "The Woman in White" (2005), played Hodel in "Fiddler on the Roof" (2007) and Julie Jordan in "Carousel" (2008).
 In New York, she appeared in "Hello Again" (2010), "Master Class" (2011), created the role of Sara Jane in "Arlington" (2012–14) and as Tzeitel in the Broadway revival of "Fiddler on the Roof" (2015).
Cannonball Adderley's Fiddler on the Roof is an album by jazz saxophonist Cannonball Adderley released on the Capitol label featuring performances of material from the Broadway musical "Fiddler on the Roof" by Adderley with Nat Adderley, Charles Lloyd, Joe Zawinul, Sam Jones and Louis Hayes.
Portofino is a musical with a book by Richard Ney, lyrics by Ney and Sheldon Harnick, and music by Louis Bellson and Will Irwin.
A Shoggoth on the Roof is a parody musical of "Fiddler on the Roof" based on the works of H. P. Lovecraft.
 Published by the H. P. Lovecraft Historical Society, it is credited to a member of the society who is referred to only as "He Who (for legal reasons) Must Not Be Named".
David Pevsner is an American actor, singer, dancer, and writer.
 Pevsner appeared in the 1990 revival of "Fiddler on the Roof", 1991 revival of "Rags", and some other theatrical productions.
 He also wrote three songs for the 1999 musical "Naked Boys Singing!
", including "Perky Little Porn Star."
 He wrote and produced two one-person shows, "To Bitter and Back" (2003) and "Musical Comedy Whore" (2013).
 Pevsner portrayed mostly minor roles in films and television.
 His major screen roles are Ebenezer Scrooge in the 2012 film adaptation of "A Christmas Carol", "Scrooge & Marley", and Ross Stein in a 2011 web series "Old Dogs & New Tricks".
 He recorded the 2016 album "Most Versatile", whose album cover pays homage to Bruce Springsteen's album "Born in the U.S.A."
Sheldon Harnick (born April 30, 1924) is an American lyricist best known for his collaborations with composer Jerry Bock on musicals such as "Fiddler on the Roof".
Fiddler on the Roof is a 1971 American musical comedy-drama film produced and directed by Norman Jewison.
 It is an adaptation of the 1964 Broadway musical of the same name, with music composed by Jerry Bock, lyrics by Sheldon Harnick, and screenplay by Joseph Stein.
 Starring Topol, Norma Crane, Leonard Frey, Molly Picon, and Paul Mann, the film centers on Tevye, the father of five daughters, and his attempts to maintain his Jewish religious and cultural traditions as outside influences encroach upon the family's lives.
 He must cope both with the strong-willed actions of his three older daughters, who wish to marry for love – each one's choice of a husband moves further away from the customs of his faith – and with the edict of the Tsar that evicts the Jews from the town of Anatevka.
 Throughout the film, Tevye breaks the fourth wall by talking directly to the audience as well as to God.
 In addition to the difficulties of being poor, Tevye speaks of the Jewish community's constant fear of harassment from their non-Jewish neighbors.