Listen to Tranquil Seas online. Tranquil Seas is an Instrumental language song and is sung by Pet Music Therapy, Dog Music Waves and Dog Sleep Dreams. Tranquil Seas, from the album Music for Dogs: Soothing Symphonies for a Calming Nights Sleep, was released in the year 2019. The duration of the song is 3:31. Download Instrumental songs online from JioSaavn.