Background: Vampire Weekend are an American rock band from New York City, formed in 2006. They are currently signed to Columbia Records. The band consists of lead vocalist and guitarist Ezra Koenig, drummer and percussionist Chris Tomson and bassist and backing vocalist Chris Baio. The band's first album Vampire Weekend (2008) - which included the singles "Mansard Roof", "A-Punk", "Oxford Comma", "Cape Cod Kwassa Kwassa" and "The Kids Don't Stand a Chance" - was acclaimed by critics for its world music influences.
Context: After remaining quiet following the conclusion of their Modern Vampires tour, on January 26, 2016, Rostam Batmanglij announced his departure from the band on Twitter. He noted that he and Koenig would continue to collaborate. Later the same day, Koenig announced that Vampire Weekend was in the studio working on their upcoming fourth album, with Batmanglij contributing to the record. The album's working title was revealed to be Mitsubishi Macchiato.  In April 2016, the band briefly performed at a rally for presidential candidate Bernie Sanders in Washington Park Square. Koenig has been a well-known supporter of Sanders, after discussions on his Beats 1 radio show, Time Crisis. The band performed live with Dave Longstreth of the Dirty Projectors, which marked their first performance as a trio.  In late 2016, Koenig was reportedly in talks to sign the band with Columbia Records, as he reportedly "hit it off" with executive, Rob Stringer. Initially, this news was regarded a rumour, until the band's website revamp in 2018, in which a Sony Music copyright appeared on the site.  In March 2017, Koenig revealed in an elaborate Instragram update that during 2016 he had spent countless hours researching and writing music in libraries with grad students. Additionally, he revealed that the album would feature a more 'spring-time' vibe and one of the songs would be entitled Flower Moon. Koenig revealed that LP4 would be partially inspired by the songwriting of country singer, Kacey Musgraves, after he attended one of her shows in September 2016. In an interview with Stereogum, he stated, "I'm the type of person who has spent hours poring over the avant-garde poetic lyrics of certain songwriters, and there was something that felt so good [about how] from the first verse, you knew who was singing, who they were singing to, what kind of situation they were in. After the show I realized there's not a ton of Vampire Weekend songs where you could listen to the first verse and immediately answer the question of who's singing and who are they singing to." Furthermore, in a September 2017 interview with Zane Lowe, Ezra briefly spoke about LP4 and stated that it was "about 80% done." He mentioned that the album would feature lead producer, Ariel Rechtshaid, with additional "guest appearances", one of which being Batmanglij. Lowe pushed Koenig for a release date, sighting Q1 2018 as a likely candidate.  The band's first show since their hiatus was confirmed on January 31, 2018, when it was announced that the band would be headlining the UK music festival End of the Road. The festival will run from August 31 to September 3 and mark Vampire Weekend's first return to the stage in 4 years. Additionally, it was announced that they would headline the 2018 Fuji Rock Festival, scheduled for July 27 to 29. The band will also be performing at Lollapalooza 2018, which runs from August 2-5, 2018.
Question: What did he move on to
Answer: Koenig revealed in an elaborate Instragram update that during 2016 he had spent countless hours researching and writing music in libraries with grad students.

Background: Pitchford was born in Honolulu, where he attended Catholic schools, graduating in 1968 from Saint Louis High School. He began his performance career as an actor and a singer with the Honolulu Community Theatre (now Diamond Head Theatre), the Honolulu Symphony Orchestra and the Honolulu Theatre for Youth, among others. While studying at Yale University, Pitchford performed with numerous campus drama groups, but his focus gradually turned off-campus, where he worked with the Wooster Square Revival, an experimental theatre company that offered acting opportunities to recovering addicts and alcoholics. In 1969, Pitchford returned to Honolulu as an assistant to authors Faye Hammel and Sylvan Levey in updating the popular guidebook Hawai'i on $5 and $10 A Day, and researching Trans World Airlines' Budget Guide to Hawai'i, the first of a series of guidebooks that would eventually turn into the popular series TWA Getaway Guides.
Context: As a result of performing his early songwriting efforts in cabarets around Manhattan, he was invited to write with such composers as Stephen Schwartz, Alan Menken and Rupert Holmes. In 1979, he collaborated with recording artist and cabaret performer Peter Allen to write new songs for Allen's one-man Broadway revue, Up In One.  With composer Michael Gore, Pitchford collaborated on three songs for Alan Parker's 1980 motion picture Fame; these were "Red Light," a disco hit for singer Linda Clifford; the symphonic/rock finale "I Sing the Body Electric;" and the title song "Fame," which became a multi-platinum, international best seller for Irene Cara. That song earned Gore and Pitchford an Oscar, a Golden Globe, and a Grammy nomination for Song of the Year (1981). They also received a Grammy nomination for Best Soundtrack Album for a Motion Picture, Television or Other Visual Media.  When Pitchford was signed by Warner Brothers Publishing (1981) he began collaborating with a variety of songwriters. Among the first songs whose lyrics he wrote in collaboration with composer Tom Snow was "Don't Call It Love," which was first recorded by Kim Carnes on her 1981 album Mistaken Identity; the selection charted in the U.S. country singles top-ten for Dolly Parton in 1985 and was named the BMI Country Song of the Year.  For the ill-fated 1981 movie The Legend of the Lone Ranger, Pitchford wrote a narrative ballad, "The Man In the Mask." This was spoken (throughout the movie) and sung (at its beginning and end) by Merle Haggard.  "You Should Hear How She Talks About You," another Snow/Pitchford composition, was a Top 5 hit for Melissa Manchester for which she won the Grammy Award for Best Female Pop Vocal Performance in 1983. That same year, Pitchford, Kenny Loggins and Steve Perry wrote and composed "Don't Fight It," a Top 20 hit that was Grammy-nominated in the Best Pop Vocal Duo category. With musical director Michael Miller, he wrote the theme song for the weekly dance-music show Solid Gold (1980-88).
Question: when did he start songwriting?
Answer:
In 1979, he collaborated with recording artist and cabaret performer Peter Allen to write new songs for Allen's one-man Broadway revue, Up In One.