Listen to Guitar Harmony Spectrum online. Guitar Harmony Spectrum is an Instrumental language song and is sung by Calm Guitar Music Play List, Calm Guitar Music Retro and Calm Guitar Music Playlists. Guitar Harmony Spectrum, from the album Harmony Unleashed: Guitar Music Collection, was released in the year 2024. The duration of the song is 2:58. Download Instrumental songs online from JioSaavn.