Question: What book written by Maria von Trapp inspired a famous musical that was performed live on ITV in 2015?

full_context: Document 1: The Trapp Family: The Trapp Family (German: "Die Trapp-Familie" ) is a 1956 West German comedy drama film directed by Wolfgang Liebeneiner and starring Ruth Leuwerik, Hans Holt, and Maria Holst. Based on Maria von Trapp's memoir, "The Story of the Trapp Family Singers", the film is about a novice nun sent to care for the unruly children of a wealthy baron, who falls in love with and marries the young woman. Through her caring influence, the family becomes a famous singing group. When the baron is pressured to join Hitler's army, the family escapes to the United States where they establish themselves as singers.
Document 2: Romany Wood: Romany Wood is a 40 minute musical work for children's voices, narrator and orchestra. It is a unique work that was written to connect children with classical music and to raise money for charity. There have been over a hundred performances, including two Royal Charity Gala concerts: for Prince Edward to open the new Theatre Severn in Shrewsbury and for the Duchess of Cornwall to raise money for the National Osteoporosis Society at a performance at the Birmingham Royal Ballet School. There has also been a Classic fm broadcast, excerpts of which have been performed on BBC Songs of Praise. Personalities involved in compering or narrating in performances include Michael Maloney, Jasper Carrott, Adrian Chiles, Alan Titchmarsh, Timothy West, Richard Stilgoe and Nick Owen.
Document 3: Maria von Trapp: Maria Augusta von Trapp (née Kutschera; 26 January 1905 – 28 March 1987), also known as Baroness von Trapp, was the stepmother and matriarch of the Trapp Family Singers. She wrote "The Story of the Trapp Family Singers" which was published in 1949. The story served as the inspiration for the 1956 West German film "The Trapp Family", which in turn inspired the Broadway musical "The Sound of Music" (1959) and the 1965 film of the same name.
Document 4: The Sound of Music (film): The Sound of Music is a 1965 American musical drama film produced and directed by Robert Wise, and starring Julie Andrews and Christopher Plummer, with Richard Haydn and Eleanor Parker. The film is an adaptation of the 1959 Broadway musical of the same name, composed by Richard Rodgers with lyrics by Oscar Hammerstein II. The film's screenplay was written by Ernest Lehman, adapted from the stage musical's book by Lindsay and Crouse. Based on the memoir "The Story of the Trapp Family Singers" by Maria von Trapp, the film is about a young Austrian woman studying to become a nun in Salzburg in 1938 who is sent to the villa of a retired naval officer and widower to be governess to his seven children. After bringing and teaching love and music into the lives of the family through kindness and patience, she marries the officer and together with the children they find a way to survive the loss of their homeland through courage and faith.
Document 5: The Sound of Music Live!: The Sound of Music Live! is a television special that was originally broadcast by NBC on December 5, 2013. Produced by Craig Zadan and Neil Meron, the special was an adaptation of Rodgers and Hammerstein's Broadway musical "The Sound of Music", starring country singer Carrie Underwood as Maria von Trapp, performed and televised live from Grumman Studios in Bethpage, New York.
Document 6: The von Trapps: The von Trapps (formerly The von Trapp Children) is a musical group made up of Sofia, Melanie, Amanda and August (formerly Justin) von Trapp, descendants of the Trapp Family Singers. They are the grandchildren of Werner von Trapp, who was portrayed as Kurt in "The Sound of Music", and the great-grandchildren of Georg Ritter von Trapp and his first wife Agathe Whitehead, and the step-great-grandchildren of Maria von Trapp, Georg's second wife.
Document 7: The Sound of Music: The Sound of Music is a musical with music by Richard Rodgers, lyrics by Oscar Hammerstein II and a book by Howard Lindsay and Russel Crouse. It is based on the memoir of Maria von Trapp, "The Story of the Trapp Family Singers". Set in Austria on the eve of the Anschluss in 1938, the musical tells the story of Maria, who takes a job as governess to a large family while she decides whether to become a nun. She falls in love with the children, and eventually their widowed father, Captain von Trapp. He is ordered to accept a commission in the German navy, but he opposes the Nazis. He and Maria decide on a plan to flee Austria with the children. Many songs from the musical have become standards, such as "Edelweiss", "My Favorite Things", "Climb Ev'ry Mountain", "Do-Re-Mi", and the title song "The Sound of Music".
Document 8: The Sound of Music Live (2015): The Sound of Music Live is a television special that was originally broadcast by ITV on 20 December 2015. The special was an adaptation of Rodgers and Hammerstein's Broadway musical "The Sound of Music", starring Kara Tointon as Maria von Trapp, performed and televised live from 3 Mills Studios in London. Notable cast members include: Kara Tointon, Katherine Kelly, Alexander Armstrong, Julian Ovenden, Mel Giedroyc, Maria Friedman and notable child actors including Guy Trundle, Tom Sargent and Zac Lester, among others.
Document 9: Hedwig von Trapp: Hedwig Maria Adolphine Gobertina von Trapp (28 July 1917 – 14 September 1972) was the fifth child of Georg von Trapp and his first wife, Agatha Whitehead von Trapp. She was a member of the Trapp Family Singers, whose lives were the inspiration for the play and movie "The Sound of Music". She was portrayed as the character "Brigitta".
Document 10: Rupert von Trapp: Rupert Georg von Trapp, M.D. (1 November 1911 – 22 February 1992) was the firstborn child and eldest son of Georg von Trapp and his first wife, Agatha Whitehead von Trapp. He was a member of the Trapp Family Singers, whose lives were the inspiration for the play and film "The Sound of Music". He was portrayed as the character "Friedrich".
Document 11: Live from New Zealand: Live From New Zealand is a live high quality video album (DVD) and PBS Great Performances special by Christchurch, New Zealand soprano Hayley Westenra and featured duet with baritone Teddy Tahu Rhodes and soprano Sophie Westenra. It was recorded in St. James Theatre, Wellington and published in 2004.
Document 12: Liv and Maddie: Music from the TV Series: Liv and Maddie (Music from the TV Series) is a soundtrack to the Disney Channel Original Series, "Liv and Maddie". It features 12 songs performed by the show's star, Dove Cameron and a song performed by "Teen Beach Movie" star, Jordan Fisher. The soundtrack was released on March 17, 2015 by Walt Disney Records.
Document 13: Maria Franziska von Trapp: Maria Agatha Franziska Gobertina von Trapp (28 September 1914 – 18 February 2014) was the second-oldest daughter of Georg von Trapp and his first wife, Agatha Whitehead von Trapp. She was a member of the Trapp Family Singers, whose lives inspired the musical and film "The Sound of Music". She was portrayed as the character "Louisa". She died at age 99, and was the last surviving sibling portrayed in the film.
Document 14: Adrianna Bertola: Adrianna Jean Bertola (born 9 February 1999) is an English teen actress and singer, who rose to attention playing Gretl in "The Sound of Music" and Sharice Brooks in "Casualty". Bertola also played Violet Beauregarde in "Charlie and the Chocolate Factory the Musical" from 22 May 2013 to 12 November 2013.
Document 15: Les Misérables: The Dream Cast in Concert: Les Misérables: The Dream Cast in Concert (1995), also titled Les Misérables in Concert, is a concert version of the musical "Les Misérables", produced to celebrate the 10th anniversary of the West End production. It was filmed in October 1995 at the Royal Albert Hall and released on DVD, VHS and LD in 1998 and re-released on DVD in North America in 2008. The latest DVD presents the concert in its original 16x9 ratio. Although filmed with HD cameras, a Blu-ray edition has not been released yet. The 10th Anniversary cast stars Colm Wilkinson as Jean Valjean, Philip Quast as Inspector Javert, Michael Ball as Marius Pontmercy, Lea Salonga as Éponine, Judy Kuhn as Cosette, Ruthie Henshall as Fantine, Michael Maguire as Enjolras, Alun Armstrong as Thénardier, Jenny Galloway as Madame Thénardier, Adam Searles as Gavroche, Hannah Chick as Young Cosette, and several others, and was directed by John Caird. The performers were chosen from the London, Broadway and Australian productions of the show and the Royal Philharmonic Orchestra was conducted by David Charles Abell. It also aired on PBS part of the Great Performances series.
ground_truth: The Story of the Trapp Family Singers