Released on the 1994 compilation Thank You for the Music, 'I Wonder (Departure)' is a Swedish pop track by ABBA that captures the band's signature melodic sensibility. The song features the group's characteristic harmonies and a driving rhythm typical of their late-career recordings. While the title suggests introspection, the track serves as a standard song in the Swedish pop repertoire, showcasing the enduring appeal of ABBA's songwriting and production style. It stands alongside other catalogues works that highlight the group's ability to blend romantic themes with upbeat arrangements. The recording reflects the polished sound that defined the Swedish song into the international pop market during the 1970s.