Listen to Forgotten Spirits (feat. Bass Ustaad music) (Psy-tech version) online. Forgotten Spirits (feat. Bass Ustaad music) (Psy-tech version) is an Instrumental language song and is sung by Low End Theory. Forgotten Spirits (feat. Bass Ustaad music) (Psy-tech version), from the album Forgotten Spirit (feat. Bass Ustaad music), was released in the year 2024. The duration of the song is 2:53. Download Instrumental songs online from JioSaavn.