Released for the first time in 2011, Summvs is the fifth and final installment of Alva Noto and Ryuichi Sakamoto’s V.I.R.U.S. series. The title Summvs refers to the Latin word ‘summa’ (eng. sum) and ‘versus’ (eng. towards); it serves as a metaphor for the work being oriented towards a collaborative result. The album features Microon compositions containing recordings of a 16th tone interval tuning piano – Piano Metamorfoseador Carrillo en Dieciseisavos de Tono. The album also features two covers of the track By This River, composed by Brian Eno, Dieter Moebius, and Hans-Joachim Roedelius in 1977.