Question: Daniel Barenboim (born 15 November 1942) is an Argentine-Israeli pianist and conductor who is a citizen of Argentina, Israel, Palestine, and Spain. He is the general music director of the Berlin State Opera, and the Staatskapelle Berlin; he previously served as Music Director of the Chicago Symphony Orchestra, the Orchestre de Paris and La Scala in Milan. Barenboim is known for his work with the West-Eastern Divan Orchestra, a Seville-based orchestra of young Arab and Israeli musicians, and as a resolute critic of the Israeli occupation of Palestinian territories. Barenboim has received many awards and prizes, including an honorary Knight Commander of the Order of the British Empire, France's Legion d'honneur both as a Commander and Grand Officier, and the German Grosses Bundesverdienstkreuz and Willy Brandt Award.

Daniel Barenboim was born in 1942 in Buenos Aires, Argentina, to Argentinian-Jewish parents Aida (nee Schuster) and Enrique Barenboim. He started piano lessons at the age of five with his mother, continuing to study with his father, who remained his only teacher. On 19 August 1950, at the age of seven, he gave his first formal concert in his hometown, Buenos Aires. In 1952, Barenboim's family moved to Israel. Two years later, in the summer of 1954, his parents took him to Salzburg to take part in Igor Markevitch's conducting classes. During that summer he also met and played for Wilhelm Furtwangler, who has remained a central musical influence and ideal for Barenboim. Furtwangler called the young Barenboim a "phenomenon" and invited him to perform the Beethoven First Piano Concerto with the Berlin Philharmonic, but Barenboim's father considered it too soon after the Second World War for a child of Jewish parents to be performing in Berlin. In 1955 Barenboim studied harmony and composition with Nadia Boulanger in Paris. On 15 June 1967, Barenboim and British cellist Jacqueline du Pre were married in Jerusalem at a Western Wall ceremony, Du Pre having converted to Judaism. Acting as one of the witnesses was the conductor Zubin Mehta, a long-time friend of Barenboim. Since "I was not Jewish I had to temporarily be renamed Moshe Cohen, which made me a 'kosher witness'," Mehta recalled. Du Pre retired from music in 1973, after being diagnosed with multiple sclerosis (MS). The marriage lasted until du Pre's death in 1987. In the early 1980s, Barenboim began an affair with the Russian pianist Elena Bashkirova, with whom he had two sons born in Paris before du Pre's death: David Arthur, born 1983, and Michael, born 1985. Barenboim worked to keep his relationship with Bashkirova hidden from du Pre, and believed he had succeeded. He and Bashkirova married in 1988. Both sons are part of the music world: David is a manager-writer for the German hip-hop band Level 8, and Michael Barenboim is a classical violinist.

Using a quote from the above article, answer the following question: Where did he attend after his conducting classes?
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Answer: In 1955 Barenboim studied harmony and composition with Nadia Boulanger in Paris.

Problem: Michael Bernard Bloomfield (July 28, 1943 - February 15, 1981) was an American guitarist and composer, born in Chicago, Illinois, who became one of the first popular music superstars of the 1960s to earn his reputation almost entirely on his instrumental prowess, since he rarely sang before 1969. Respected for his guitar playing, Bloomfield knew and played with many of Chicago's blues legends before achieving his own fame and was instrumental in popularizing blues music in the mid-1960s. He was ranked number 22 on Rolling Stone's list of "100 Greatest Guitarists of All Time" in 2003 and number 42 by the same magazine in 2011. He was inducted into the Blues Hall of Fame in 2012 and, as a member of the Paul Butterfield Blues Band, was inducted into the Rock and Roll Hall of Fame in 2015.

Bloomfield also made an impact through his work with Al Kooper, who had played with Bloomfield on Dylan's "Like a Rolling Stone". Kooper had become an A&R man for Columbia Records, and Bloomfield and Kooper had played piano on Moby Grape's 1968 Grape Jam, an instrumental album that had been packaged with the group's Wow collection. "Why not do an entire jam album together?" Kooper remembered in 1998, writing the booklet notes for the Bloomfield anthology Don't Say That I Ain't Your Man: Essential Blues, 1964-1969. "At the time, most jazz albums were made using this modus operandi: pick a leader or two co-leaders, hire appropriate sidemen, pick some tunes, make some up and record an entire album on the fly in one or two days. Why not try and legitimize rock by adhering to these standards? In addition, as a fan, I was dissatisfied with Bloomfield's recorded studio output up until then. It seemed that his studio work was inhibited and reined in, compared to his incendiary live performances. Could I put him in a studio setting where he could feel free to just burn like he did in live performances?" The result was Super Session, a jam album that spotlighted Bloomfield's guitar skills on one side. Bloomfield, who suffered from insomnia, left the sessions after the first day. Guitarist Stephen Stills completed the album with Kooper. It received excellent reviews and became the best-selling album of Bloomfield's career. Its success led to a live sequel, The Live Adventures of Mike Bloomfield and Al Kooper, recorded over three nights at Fillmore West in September 1968.

all they did was play piano together? (mike and al)

Answer with quotes:
guitar skills