Over the course of the decade, the group became enormously successful on the strength of the albums Countdown to Ecstasy (1973), Pretzel Logic (1974), Katy Lied (1975), The Royal Scam (1976), and Aja (1977), the band's best-selling effort and a critical favorite. They gradually shifted from performing live to working solely in the studio, making the project a revolving selection of session musicians at the behest of Fagen and Becker. Their relationship became strained during the making of 1980's Gaucho, largely due to their insistence for perfection. Both Becker and Fagen would later recall they seemed depressed. In addition, Becker was in the midst of a drug problem and went through a withdrawal stage. Though Fagen imagined they might "stick it out for a while," he admitted to Robert Palmer of The New York Times, in an article published on June 17, 1981, that the group had indeed separated. "Basically, we decided after writing and playing together for 14 years, we could use a changement d'air as the French say," he told Palmer. After their split, Fagen worked on a song for the soundtrack of the film Heavy Metal, which got him back into the studio. He began working towards a solo album shortly thereafter. "Working on it has been interesting. The fact that it's not a Steely Dan album has freed me from a certain image, a preconceived idea of how it'll sound," he said at the time. Fagen had hoped to record music on his own "a year or so" prior to the duo's breakup. The album was originally slated to be titled Talk Radio. Recording and production To prepare to use the digital technology, the album's engineers took classes at 3M in St. Paul, Minnesota. The Nightfly was recorded in 1981–82 at Soundworks Digital Audio/Video Recording Studios and Automated Sound in New York City, and at Village Recorders in Los Angeles. The producer was Gary Katz, the album engineer was Roger Nichols and the mixer was Elliot Scheiner; all had worked on most of the seven previous Steely Dan albums. Many of the musicians had also played on Steely Dan records, including Jeff Porcaro, Rick Derringer and Larry Carlton. Similar to the Aja and Gaucho albums, a large number of studio musicians were employed, with the liner notes crediting a total 31 musicians. During a radio interview on Off the Record in 1983, Fagen revealed that, though