Listen to Sweet Sound online. Sweet Sound is an Unknown language song and is sung by Фортепиано Café. Sweet Sound, from the album Фортепиано Café: Фоновая Музыка Bar, Успокаивающая Музыка Café, Коктейли & Напитки, was released in the year 2012. The duration of the song is 3:03. Download Unknown songs online from JioSaavn.