1970s Swedish pop, disco, glam rock, europop, female duet, soprano and mezzo-soprano in unison and harmonies, piano-driven, lush strings, analog synth (Polymoog), tom-heavy drums, muted cymbals, crystalline production, bittersweet melancholic lyrics over upbeat major-key melodies, dramatic operatic choruses, nostalgic, danceable, 124 BPM, 4/4, female duet only, no male lead vocals