sentences:  At the invitation of Harman Kardon he built a 24 string drone sonometer for J.Views during a documentary shoot in the spring of 2018.In October 2018 he published an 8-page musicological essay in Soundest #1 in which he states that the configuration of the musical keyboard is mathematically based, rather than a cultural evolutionairy phenomenon.He shows the pattern in several non-Western scales such as the Indian 22 shruti system, the 19-tone scales on the Iranian "tar" and the Turkish"saz", an out-of-place Coptic artifact and his own tuning system applied on the Moodswinger.