Problem: Daniel Milton Rooney (July 20, 1932 - April 13, 2017) was chairman of the Pittsburgh Steelers, an American football team in the National Football League (NFL), and son of the Steelers' founder, Art Rooney. Dan Rooney was elected to the Pro Football Hall of Fame in 2000 for his contributions to the game. He was credited with spearheading a requirement that NFL teams with head coach and general manager vacancies interview at least one minority candidate, which has become known as the "Rooney Rule". Rooney served as the United States Ambassador to Ireland, from July 2009 until his resignation in December 2012.

On March 17, 2009, President Obama announced he had nominated Rooney to become the next US ambassador to Ireland, citing the owner's longstanding support for Irish-American charitable causes. In 2008, Rooney gave $30,000 to a Democratic Party committee that aided Obama's campaign, according to CQ MoneyLine, a non-partisan group that tracks political contributions. According to David Lewis, a Vanderbilt University political scientist and the author of The Politics of Presidential Appointments, "giving coveted ambassadorships to political supporters is a relatively low-risk way for presidents to repay campaign debts."  Secretary of State Hillary Clinton swore him in as the new ambassador to Ireland on July 1, 2009. Ambassador Rooney presented his credentials to Irish President Mary McAleese on July 3, before making his first official speaking engagement at lunch hosted by the American Chamber of Commerce Ireland.  In an interview with The Irish Times in April 2011 Rooney mentioned that he would consider resigning his ambassadorship in order to campaign for Obama's re-election. However, in a prepared statement released after that interview was published Rooney stated, "I was asked what I could do to help [Obama] in the next election and I responded that the best thing I could do would be to help him campaign. Were I to do so, it would require my resignation as ambassador to Ireland. However, I am very pleased with my accomplishments to date and I intend to continue to carry out my duties." On December 14, 2012, he resigned as US Ambassador to Ireland and returned to Pittsburgh. He would eventually be replaced in June 2014 by Kevin O'Malley.  Rooney was the maternal great-uncle of actresses Kate Mara and her sister Rooney Mara.

What did he do after this?

Answer with quotes: On December 14, 2012, he resigned as US Ambassador to Ireland and returned to Pittsburgh.

Question:
Anton Friedrich Wilhelm (von) Webern (German: ['anton 've:ban] ( listen); 3 December 1883 - 15 September 1945) was an Austrian composer and conductor. Along with his mentor Arnold Schoenberg and his colleague Alban Berg, Webern was in the core of those in the circle of the Second Viennese School, including Ernst Krenek and Theodor W. Adorno. As an exponent of atonality and twelve-tone technique, Webern exerted influence on contemporaries Luigi Dallapiccola, Krenek, and even Schoenberg himself.
Webern published little of his early work in particular; like Brahms, though perhaps for not entirely the same reasons, Webern was characteristically meticulous and revised extensively. Many juvenilia remained unknown until the work and findings of the Moldenhauers in the 1960s, effectively obscuring and undermining formative facets of Webern's musical identity, highly significant even more so in the case of an innovator whose music was crucially marked by rapid stylistic shifts. Thus when Boulez first oversaw a project to record "all" of Webern's music, not including the juvenilia, the results fit on three rather than six CDs.  Webern's earliest works consist primarily of lieder, the genre that most belies his roots in Romanticism, specifically German Romanticism; one in which the music yields brief but explicit, potent, and spoken meaning manifested only latently or programmatically in purely instrumental genres; one marked by significant intimacy and lyricism; and one which often associates nature, especially landscapes, with themes of homesickness, solace, wistful yearning, distance, utopia, and belonging. Robert Schumann's "Mondnacht" is an iconic example; Eichendorff, whose lyric poetry inspired it, is not far removed from the poets (e.g., Richard Dehmel, Gustav Falke, Theodor Storm) whose work inspired Webern and his contemporaries Alban Berg, Max Reger, Arnold Schoenberg, Richard Strauss, Hugo Wolf, and Alexander Zemlinsky. Wolf's Morike-Lieder were especially influential on Webern's efforts from this period. But well beyond these lieder alone, all of Webern's music may be said to possess such concerns and qualities, as is evident from his sketches, albeit in an increasingly symbolic, abstract, spare, introverted, and idealized manner.  Other works include the orchestral tone poem Im Sommerwind (1904) and the Langsamer Satz (1905) for string quartet.  Webern's first piece after completing his studies with Schoenberg was the Passacaglia for orchestra (1908). Harmonically, it is a step forward into a more advanced language, and the orchestration is somewhat more distinctive than his earlier orchestral work. However, it bears little relation to the fully mature works he is best known for today. One element that is typical is the form itself: the passacaglia is a form which dates back to the 17th century, and a distinguishing feature of Webern's later work was to be the use of traditional compositional techniques (especially canons) and forms (the Symphony, the Concerto, the String Trio, and String Quartet, and the piano and orchestral Variations) in a modern harmonic and melodic language.
Answer this question using a quote from the text above:

what is the name of one of his pieces?

Answer:
Other works include the orchestral tone poem Im Sommerwind (1904) and the Langsamer Satz (1905) for string quartet.