Question:  What novel was published in seven parts between 1913 and 1927 and was adapted into a musical that ran Off-Broadway in 2003?

Context articles: Olympus on My Mind
Amy Herzog
In Transit (musical)
Harvey Schmidt
Forbidden Broadway: Special Victims Unit
My Life with Albertine
Marcel Proust
Cindy (musical)
Everyday Rapture
Steven M. Alper

Olympus On My Mind is a musical with music by Grant Sturiale and a book and lyrics by Barry Harman, based on a play by Heinrich Von Kleist.
 The musical ran Off-Broadway at Lamb's Theatre for 297 performances in 1986.
 It was also staged that year in a regional production in Fairfield, Connecticut by the Boston Post Road Stage Company.
Amy Herzog is an American playwright.
 Her play "4000 Miles", which ran Off-Broadway in 2011, was a finalist for the 2013 Pulitzer Prize for Drama.
 Herzog's plays have been produced Off-Broadway, and have received nominations for, among others: the Lucille Lortel Award for Outstanding Actor and Actress ("After the Revolution"); the Drama Desk Award nomination for Outstanding Featured Actor in a Play ("The Great God Pan"); and Drama Desk Award nominations for Outstanding Play and Outstanding Actress in a Play ("Belleville").
 She was a finalist for the 2012-2013 and 2016-2017 Susan Smith Blackburn Prize.
In Transit is a musical with book, music and lyrics by Kristen Anderson-Lopez, James-Allen Ford, Russ Kaplan and Sara Wordsworth.
 The musical, performed a cappella, ran Off-Broadway in 2010, and on Broadway in 2016.
Harvey Lester Schmidt (born September 12, 1929) is an American composer for musical theatre and illustrator.
 He is best known for composing the music for the longest running musical in history, "The Fantasticks", which ran off-Broadway for 42 years from 1960 - 2002.
Forbidden Broadway: Special Victims Unit ("Forbidden Broadway: SVU" for short) is the ninth incarnation of Gerard Alessandrini's musical revue.
 The revue ran Off-Broadway from 2004 to 2007.
My Life with Albertine is a musical with music and lyrics by Ricky Ian Gordon and book and lyrics Richard Nelson.
 The story was adapted from parts of "In Search of Lost Time" by Marcel Proust.
 It ran Off-Broadway in 2003.
Valentin Louis Georges Eugène Marcel Proust ( ; ] ; 10 July 1871 – 18 November 1922), known as Marcel Proust, was a French novelist, critic, and essayist best known for his monumental novel "À la recherche du temps perdu" ("In Search of Lost Time"; earlier rendered as "Remembrance of Things Past"), published in seven parts between 1913 and 1927.
 He is considered by critics and writers to be one of the most influential authors of the 20th century.
Cindy is a musical with music and lyrics by Johnny Brandon, and a book by Joe Sauter and Mike Sawyer.
 It ran Off-Broadway at the Gate, Orpheum, and Cricket Theatres (not simultaneously) in 1964 and 1965.
 It is an adaptation of the story of Cinderella.
 It was produced by Chandler Warren and Philip Temple, by arrangement with Stuart Wiener and Jerry Grace.
Everyday Rapture is a musical with a book written by Sherie Rene Scott and Dick Scanlan and music by various composers.
 It ran Off-Broadway in 2009 and opened on Broadway in 2010.
 The musical is a loose autobiography of Scott herself, showing her travels from her half-Mennonite Kansas childhood to a life in show business.
Steven M. Alper is a music composer, primarily for the theatre, as well as an orchestrator and author.
 He wrote and orchestrated the score for the musical "The Immigrant", for which he was nominated for a Drama Desk Award for Outstanding Orchestrations.
 The production received a workshop production in New York at CAP-21 in 2000, and, after more work, it ran off-Broadway at Dodger Stages in the fall of 2004.