Borderline

The harmonic structure of 'Borderline' is defined by its use of 7th chords and a lack of strong V-I authentic cadences, which contributes to its 'dreamy' and 'floating' psychedelic atmosphere. By utilizing the iii (Bbm7) and vi (Ebm7) chords extensively, Kevin Parker creates a sense of perpetual motion that avoids the finality of a standard pop resolution. The arrangement heavily relies on the interplay between the synth pads and a prominent, melodic bassline that often emphasizes the minor 7th of the chords.

Kevin Parker wrote 'Borderline' as a progression of the psychedelic pop sound he developed on 'Currents'. He famously debuted the song live on Saturday Night Live on March 30, 2019, before the studio version was officially released. Parker was reportedly so obsessed with the track's arrangement that he released a revised version for the 2020 album 'The Slow Rush', featuring a different vocal mix and shorter intro because he felt the original single version's bass was too loud.

Serving as a centerpiece for 'The Slow Rush', this track showcases Kevin Parker's mastery of blending 1970s disco influences with modern psychedelic production. It marks a shift towards more rhythmic, dance-oriented textures while maintaining the introspective lyrical depth characteristic of Tame Impala.