A promo-only release in 1979, pressed in an edition so small it effectively never existed - Filippo Trecca's Aquarium Sounds spent four decades as a ghost record, known mostly by rumour. Sonor Music Editions' reissue is its first proper appearance on vinyl since the original pressing, and the first time it has ever been available digitally.

The album is, in reality, two things at once. Eight of its ten tracks served as the score for Così Per Gioco, a 1979 TV giallo series directed by Leonardo Cortese; the remaining two - "Ascendente Pesci" and the title track "Acquario" - soundtracked the talk show Acquario, hosted by journalist and writer Maurizio Costanzo. That dual life gives the record an unusual internal logic: groove-driven library funk sitting alongside something more atmospheric and suspended, the two registers coexisting without friction. Trecca composed and directed, with Achille Oliva on bass, Alessandro Alessandroni Jr. on keys, Giancarlo De Matteis on guitars, and Marco Parisi on drums - a tight studio ensemble recorded at RCA's Bus Studio in Rome. And then there is "Elena Tip", which adds an additional layer of period intrigue: its playful vocals belong to a young Ilona Staller, years before the name Cicciolina meant anything to anyone.

Soft rhythms, early synths, the particular warmth of late-'70s Italian studio craft. A record that slipped through time once, and won't again.