input: Voldemort does not appear in Harry Potter and the Half-Blood Prince, although his presence and actions are felt: he once again declares war, and begins to rise to power once more. He murders Amelia Bones of the Department of Magical Law Enforcement, and begins to target members of the Order of the Phoenix, including Emmeline Vance.  Rowling uses several chapters as exposition to establish Voldemort's backstory. In a series of flashbacks, using the pensieve as a plot device, she reveals that Voldemort was the son of the witch Merope Gaunt and a Muggle called Tom Riddle. Riddle abandoned Merope before their child's birth, soon after which Merope died, just hours after giving birth. After living in an orphanage, young Riddle met Dumbledore, who told him he was a wizard and arranged for him to attend Hogwarts. Riddle was outwardly a model student, but was in reality a psychopath who takes sadistic pleasure in using his powers to harm and control people. He eventually murdered his father and grandparents as revenge for abandoning him. The book also discusses Riddle's hatred of "Muggles", his obsession with Horcruxes, and his desire to split his soul to achieve immortality. Rowling stated Voldemort's conception under the influence of a love potion symbolises the prejudicial circumstances under which he was brought into the world.  In the main plot of the book, Voldemort's next step is to engineer an assault on Hogwarts, and to attack Dumbledore. This is accomplished by Draco Malfoy, who arranges transportation of Death Eaters into Hogwarts by a pair of Vanishing Cabinets, which bypass the extensive protective enchantments placed around the school. The cabinets allow Voldemort's Death Eaters to enter Hogwarts, where battle commences and Dumbledore is cornered. Hogwarts professor (and re-doubled agent) Severus Snape uses the Killing Curse against Dumbledore when Draco could not force himself to do so.

Answer this question "How does she do this?"
output: In a series of flashbacks, using the pensieve as a plot device, she reveals that Voldemort was the son of

Problem: Background: Armando Anthony "Chick" Corea (born June 12, 1941) is an American jazz pianist/electric keyboardist and composer. His compositions "Spain", "500 Miles High", "La Fiesta" and "Windows", are considered jazz standards. As a member of Miles Davis's band in the late 1960s, he participated in the birth of jazz fusion. In the 1970s he formed the fusion band Return to Forever.
Context: In the 1970s Corea started working with vibraphonist Gary Burton, with whom he recorded several duet albums for ECM, including 1972's Crystal Silence. They reunited in 2006 for a concert tour. A new record called The New Crystal Silence was issued in 2008 and won a Grammy Award in 2009. The package includes a disc of duets and another disc with the Sydney Symphony Orchestra.  Toward the end of the 1970s, Corea embarked on a series of concerts and two albums with Hancock. These concerts were presented in elegant settings with both pianists dressed formally and performing on Yamaha concert grand pianos. The two traded playing each other's compositions, as well as pieces by other composers such as Bela Bartok. In 1982, Corea performed The Meeting, a live duet with the classical pianist Friedrich Gulda.  In December 2007 Corea recorded a duet album, The Enchantment, with banjoist Bela Fleck. Fleck and Corea toured extensively for the album in 2007. Fleck was nominated in the Best Instrumental Composition category at the 49th Grammy Awards for the track "Spectacle".  In 2008 Corea collaborated with Japanese pianist Hiromi Uehara on the live album Duet (Chick Corea and Hiromi). The duo played a concert at Tokyo's Budokan arena on April 30.  In 2015 Corea reprised the duet concert series with Hancock, again sticking to a dueling-piano format, though both also had synthesizers at their station. The first concert in this series was played at the Paramount Theatre in Seattle, and featured improvised music along with iconic songs from each of the duo and standards from other composers.
Question: Did he perform with any other artists?
Answer: Toward the end of the 1970s, Corea embarked on a series of concerts and two albums with Hancock.

Question: Anyanka "Anya" Christina Emanuella Jenkins is a fictional character created by Joss Whedon for the television series Buffy the Vampire Slayer. She also appears in the comic book series based on the television show. Portrayed by Emma Caulfield, the character appears as a guest star in the third and fourth seasons of the show before becoming a series regular in the show's fifth, sixth, and seventh seasons.

Anyanka arrives at Sunnydale High in 1998 (in the episode "The Wish") as a student named Anya Emerson. She's come to Sunnydale in response to the distress of Cordelia, who is upset after catching her boyfriend, Xander Harris, kissing their friend Willow. After some prompting, Cordelia states: "I wish that Buffy Summers had never come to Sunnydale." Anya shows her true demon face to Cordelia and says, "Done." and the world changes. Now they're in an alternative reality in which Buffy has not come to Sunnydale and the vampire population has multiplied and gained in power. Giles meets with Cordelia before she dies and manages to discern what has happened. He subsequently summons Anyanka and destroys her necklace. As a result, Anya is made mortal again and the world returns to normal.  Caulfield said, "As far as I know, I don't think Joss Whedon ever intended to have Anya around for more than one episode." However, Anya returns in the episode "Doppelgangland", duping Willow into assisting in a failed magical attempt to recover the necklace which was her power center, lost when Giles destroyed it to reverse the wish granted for Cordelia. When these efforts fail, she is forced to continue living as a typical high school student. Now with human feelings, she yearns to attend the school prom in spite of her abhorrence of all men; ironically, her only hope for a date is the last man she was sent to punish, Xander. Caulfield says, "[Whedon] found this great way to have her interact with the storylines that had developed throughout the entire [third] season."  Anya develops feelings for Xander and asks him out again just before graduation. Her romantic plans are foiled when he tells her of the Mayor's plan for his own "Ascension", a transformation into pure demon, at the graduation ceremony. Anya decides to flee Sunnydale and invites Xander to join her, saying when she thinks something could happen to him, she "feels bad inside, like [she] might vomit". Xander refuses because he's got "friends on the line", and can't abandon them. She leaves without him.  Anya returns to Sunnydale early in Season Four, still infatuated with Xander. She seduces him (in the episode "The Harsh Light of Day"). Her lack of experience with people causes her to make straightforward, often tactless remarks, which soon put her at odds with other Scooby Gang members, especially Willow, who has little trust for the ex-demon. Anya's tactlessness is played both for humor and to highlight the truth in situations where others are reluctant to be frank. This is seen most poignantly in "The Body" when her inability to comprehend Buffy's mother's death leads to inappropriate remarks which at first make others angry, but then allow for catharsis and comfort.

Using a quote from the above article, answer the following question: What did she do on the show?
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Answer:
Anya's tactlessness is played both for humor and to highlight the truth in situations where