Listen to Solfeggio Frequency Brown Noise online. Solfeggio Frequency Brown Noise is an Unknown language song and is sung by White Noise Therapy, Baby Sleep and White Noise Baby Sleep. Solfeggio Frequency Brown Noise, from the album * pink noises for focusing *, was released in the year 2023. The duration of the song is 1:05. Download Unknown songs online from JioSaavn.