Perfume saw breakthrough success with their 2007 single "
Polyrhythm", which led to its parent album
Game (2008) becoming the group's first chart-topper. Work on their second studio album had already begun by July 2008, as they released their ninth major label single "
Love the World". Perfume announced an upcoming, untitled album at the group's
Disco! Disco! Disco! concert on May 10, 2009. They notably performed "Night Flight", then unreleased, which was being aired in
Morinaga ice cream commercials starring the group. As executive producer, Yasutaka Nakata returned as the album's sole composer, arranger and lyricist. Member
Kashiyuka commented that she was delighted with the recording process as it featured material differing from their previous output, in particular the largely instrumental and plainly-spoken songs of "Take Off" and "Speed of Sound": "I could never have imagined [that] from Perfume before. [...] But I was really happy and thought, 'Oh, I can do something new like that with Perfume.'" In an interview with ''
Rockin'On Japan'', Kashiyuka was happy at the idea that Nakata no longer felt compelled to create conventional
idol music for Perfume and could now experiment with their sound, closer in vein to his work with
Capsule. A-chan expressed ambivalence at the notion of Perfume's music putting production over performance, but ultimately decided that it wasn't the case as long as Perfume continued to combine their three voices. A-chan's comments attracted controversy as some perceived it to be critical of Nakata, leading their agency Amuse to release a statement saying they were taken out of context. In sessions for prior albums, Nakata asked the members to sing "coldly" or with "less emotion", however, Nocchi noted a slight
kayōkyoku influence to Perfume's vocals on
Triangle as Nakata sang with a "unique quirk" on the
demos. An interviewer for
Barks asked if A-chan gained more confidence in her singing, to which she replied, "[In the past] I didn't enjoy recording at all. It sometimes made me feel sad when I felt like I had to "sing exactly how I was told," [...] or that I was only seen as an instrument. But this time I thought I'd have fun [...] I thought I'd sing it the way I like." She recorded her parts for "Zero Gravity" and "Kiss and Music" with her natural inflections. == Composition ==