Listen to Dyad (Pentahedron) online. Dyad (Pentahedron) is an Instrumental language song and is sung by Igor Dronov and Studio for New Music Ensemble. Dyad (Pentahedron), from the album Sound Review–2 3/3, was released in the year 2021. The duration of the song is 10:36. Download Instrumental songs online from JioSaavn.