Problem: Background: Rhapsody in Blue is a 1924 musical composition by American composer George Gershwin for solo piano and jazz band, which combines elements of classical music with jazz-influenced effects. Commissioned by bandleader Paul Whiteman, the composition was orchestrated by Ferde Grofe several times, including the original 1924 scoring, "theater orchestra" setting published in 1926, and the symphony orchestra scoring published in 1942, though completed earlier. The piece received its premiere in the concert, An Experiment in Modern Music, which was held on February 12, 1924, in Aeolian Hall, New York, by Whiteman and his band with Gershwin playing the piano. The editors of the Cambridge Music Handbooks opined that "The Rhapsody in Blue (1924) established Gershwin's reputation as a serious composer and has since become one of the most popular of all American concert works."
Context: Two audio recordings exist of Gershwin performing an abridged version of the work with Whiteman's orchestra: an acoustic recording made for Victor on June 10, 1924, and running 8'59'' (this recording includes the original clarinetist, Ross Gorman, playing the glissando) and a Victor electrical recording made April 21, 1927, running 9'01'' (about half the length of the complete work). This 1927 version was also dubbed onto an RCA Victor  33 1/3 rpm Program Transcription in 1932. The latter version was actually conducted by Nathaniel Shilkret after an argument between Gershwin and Whiteman. A 1925 piano roll captured Gershwin's performance in a two piano version. Whiteman's orchestra also performed a shortened version of the piece in the 1930 film The King of Jazz featuring Roy Bargy on piano. Whiteman re-recorded the piece on both sides of a 12-inch Decca 78 rpm (29051) recorded on October 23, 1938. The first complete recording, with pianist Jesus Maria Sanroma and Arthur Fiedler conducting the Boston Pops Orchestra, was issued by RCA Victor in 1935.  Since the mid-20th century, the 1942 version has usually been performed by classical orchestras playing the expanded arrangement. In this form, it has become a staple of the concert repertoire. It has direct popular appeal while also being regarded respectfully by classical musicians.  On August 21, 1945, a recording by Oscar Levant with the Philadelphia Orchestra (conducted by Eugene Ormandy) entered at its peak position of number 23 on the Cash Box survey (Columbia Masterworks 251).  In 1973, the piece was recorded by jazz-rock artist Eumir Deodato on his album Deodato 2. The single reached Billboard peak positions number 41 Pop, number 10 Easy Listening. A disco arrangement was recorded by French pianist Richard Clayderman in 1978 and is one of his signature pieces.  In the late 1970s, interest in the original arrangement was revived. On February 14, 1973, it received its first performance since the 1920s: Kenneth Kiesler secured needed permissions and led with work with pianist Paul Verrette on his U. of New Hampshire campus. Reconstructions of it have been recorded by Michael Tilson Thomas and the Columbia Jazz Band in 1976, and by Maurice Peress with Ivan Davis on piano as part of a 60th-anniversary reconstruction of the entire 1924 concert. Andre Watts (1976), Marco Fumo (1974), and Sara Davis Buechner (2005) released recordings of the work for solo piano as did Eric Himy (2004) in a version that featured the uncut original short score. Meanwhile, such two-piano teams as Jose Iturbi and Amparo Iturbi, France Veri and Michael Jamanis and Katia and Marielle Labeque, also recorded the piece. Michel Camilo recorded the piece in 2006, winning a Latin Grammy award.
Question: what instruments are in it?
Answer: this recording includes the original clarinetist, Ross Gorman, playing the glissando

Problem: Background: Roger Federer (German pronunciation: ['rodZ@r 'fe:d@r@r]; born 8 August 1981) is a Swiss professional tennis player who is currently ranked world No. 2 in men's singles tennis by the Association of Tennis Professionals (ATP). He is regarded by many fans, players and analysts as the greatest tennis player of all time. Federer has won 20 Grand Slam singles titles--the most in history for a male player--and has held the world No. 1 spot in the ATP rankings for a record total of 308 weeks, including 237 consecutive weeks. After turning professional in 1998, he was continuously ranked in the top ten from October 2002 to November 2016.
Context: The 2006 season was statistically the best season of Federer's career. In November 2011, Stephen Tignor, chief editorial writer for Tennis.com, ranked Federer's 2006 season as statistically the second-best season of all time during the Open Era, behind Rod Laver's Grand Slam year of 1969.  Federer won 12 singles titles (the most of any player since John McEnroe in 1984) and had a match record of 92-5 (the most wins since Ivan Lendl in 1982). Federer reached the finals in an astounding 16 of the 17 tournaments he entered during the season.  In 2006, Federer won three Grand Slam singles titles and reached the final of the other, with the only loss coming against Nadal in the French Open. This was Federer and Nadal's first meeting in a Grand Slam final. He was the first man to reach all four finals in a calendar year since Rod Laver in 1969. Federer defeated Nadal in the Wimbledon Championships final. In the Australian Open, Federer defeated Marcos Baghdatis, and at the US Open, Federer defeated Roddick (2003 champion). In addition, Federer made it to six ATP Masters Series 1000 finals, winning four on hard surfaces and losing two on clay to Nadal. Federer, however, consistently pushed Nadal to the limit on clay throughout the season taking him to fourth-set tiebreakers in Monte-Carlo and Paris, and a thrilling match in Rome that went to a deciding fifth-set tiebreaker.  Federer won one ATP 500 series event in Tokyo and captured the year-end championships for the third time in his career, again finishing the year as world No. 1. Federer only lost to two players during 2006, to Nadal four times in finals, and to 19-year-old Andy Murray in the second round of the 2006 Cincinnati Masters, in what would be Federer's only defeat before reaching the final of a tournament that year. Federer finished the season on a 29-match winning streak, as well as winning 48 of his last 49 matches after the French Open.  A personal highlight for Federer came near the end of the season when he won his hometown tournament, the Swiss Indoors in Basel, Switzerland for the first time, having finished runners up in 2000 and 2001, and missing the tournament in 2004 and 2005 due to injuries.
Question: Why was the 2006 season an outstanding year?
Answer:
The 2006 season was statistically the best season of Federer's career.