Background: Walter Elias Disney (; December 5, 1901 - December 15, 1966) was an American entrepreneur, animator, voice actor and film producer. A pioneer of the American animation industry, he introduced several developments in the production of cartoons.
Context: Disney had been a heavy smoker since World War I. He did not use cigarettes with filters, and had smoked a pipe as a young man. In November 1966, he was diagnosed with lung cancer and was treated with cobalt therapy. On November 30 he felt unwell and was taken to St. Joseph Hospital where, on December 15, ten days after his 65th birthday, he died of circulatory collapse caused by lung cancer. Disney's remains were cremated two days later, and his ashes interred at the Forest Lawn Memorial Park in Glendale, California.  His estate included a 14 percent holding in Walt Disney Productions worth $20 million. He left 45 percent of his estate to his wife and children--much in a family trust--and 10 percent to his sister, nieces and nephews. The remaining 45 percent went into a charitable trust, 95 percent of which was designated for CalArts, to build a new campus (a figure of around $15 million); he also donated 38 acres (0.154 km2) of the Golden Oaks ranch in Valencia for construction of that school. The university moved there in November 1971.  The release of The Jungle Book and The Happiest Millionaire in 1967 raised the total number of feature films that Disney had been involved in to 81. When Winnie the Pooh and the Blustery Day was released in 1968, it earned Disney an Academy Award in the Short Subject (Cartoon) category, awarded posthumously. After Disney's death, his studios continued to produce live-action films prolifically but largely abandoned animation until the late 1980s, after which there was what The New York Times describes as the "Disney Renaissance" that began with The Little Mermaid (1989). Disney's companies continue to produce successful film, television and stage entertainment.  Disney's plans for the futuristic city of EPCOT did not come to fruition. After Disney's death, his brother Roy deferred his retirement to take full control of the Disney companies. He changed the focus of the project from a town to an attraction. At the inauguration in 1971, Roy dedicated Walt Disney World to his brother. Walt Disney World expanded with the opening of Epcot Center in 1982; Walt Disney's vision of a functional city was replaced by a park more akin to a permanent world's fair. In 2009, the Walt Disney Family Museum, designed by Disney's daughter Diane and her son Walter E. D. Miller, opened in the Presidio of San Francisco. Thousands of artifacts from Disney's life and career are on display, including numerous awards that he received. In 2014, the Disney theme parks around the world hosted approximately 134 million visitors.  Disney has been portrayed numerous times in fictional works. H. G. Wells references Disney in his 1938 novel The Holy Terror, in which World Dictator Rud fears that Donald Duck is meant to lampoon the dictator. Disney was portrayed by Len Cariou in the 1995 made-for-TV film A Dream Is a Wish Your Heart Makes: The Annette Funicello Story, and by Tom Hanks in the 2013 film Saving Mr. Banks. In 2001, the German author Peter Stephan Jungk published Der Konig von Amerika (trans: The King of America), a fictional work of Disney's later years that re-imagines him as a power-hungry racist. The composer Philip Glass later adapted the book into the opera The Perfect American (2013).
Question: Did the way he left his estate cause issues within the family?
Answer: He left 45 percent of his estate to his wife and children--much in a family trust--and 10 percent to his sister, nieces and nephews.

Background: The Birthday Party (originally known as The Boys Next Door) were an Australian post-punk band, active from 1978 to 1983. Despite limited commercial success, The Birthday Party's influence has been far-reaching, and they have been called "one of the darkest and most challenging post-punk groups to emerge in the early '80s." The group's "bleak and noisy soundscapes," which drew irreverently on blues, free jazz, and rockabilly, provided the setting for vocalist Nick Cave's disturbing tales of violence and perversion. Their music has been described by critic Simon Reynolds as gothic, and their single "Release the Bats" was particularly influential on the emerging gothic scene.
Context: The Boys Next Door's best known song, "Shivers", written by Howard, and first performed and recorded by his band The Young Charlatans, was banned by radio stations because of a reference to suicide. After recordings and moderate success in Australia (including hundreds of live shows) they headed for London in 1980, changed their name to The Birthday Party and launched into a period of innovative and aggressive music-making. Some sources say the band took its new name from the Harold Pinter play The Birthday Party; others (including Ian Johnston's Cave biography) state it was prompted by Cave misremembering, or intentionally misattributing, the name to a non-existent birthday party scene in the Dostoyevsky novel Crime and Punishment. In a 2008 interview, Rowland S. Howard gave his own recollection: "The name The Birthday Party came up in conversation between Nick and myself. There's this apocryphal story about it coming from a Dostoyevsky novel. It may have had various connotations, but what he and I spoke about was a sense of celebration and making things into more an occasion and ritual". They resided in London, with trips back to Australia and tours through Europe and the U.S. before relocating to West Berlin in 1982.  Above the barely-controlled racket, Cave's vocals ranged from desperate to simply menacing and demented. Critics have written that "neither John Cale nor Alfred Hitchcock was ever this scary," and that Cave "doesn't so much sing his vocals as expel them from his gut". Though Cave drew on earlier rock and roll shriekers--especially Iggy Pop and Suicide's Alan Vega--his singing with the Birthday Party remains powerful and distinct. His lyrics also drew on Arthur Rimbaud and Charles Baudelaire.  The single "Release the Bats" came out during the emergence of the gothic scene. This song about "vampire sex" was promoted by an advertisement with the words "Dirtiness is next to antigodliness".  Their 1982 album Junkyard was inspired by American Southern Gothic imagery, dealing with extreme subjects like an evangelist's murdered daughter.
Question: did their style change over time?
Answer:
his singing with the Birthday Party remains powerful and distinct.