Listen to Solfeggio Frequency (69.3Hz) Imagination's Lullaby Serenity online. Solfeggio Frequency (69.3Hz) Imagination's Lullaby Serenity is an Instrumental language song and is sung by Subliminal Hypnosis. Solfeggio Frequency (69.3Hz) Imagination's Lullaby Serenity, from the album In the Centered Stillness of Solfeggio Frequencies, was released in the year 2024. The duration of the song is 1:00:00. Download Instrumental songs online from JioSaavn.