Originally released as a limited edition audio cassette for Record Store Day 2017, "Mono" consists of "field recordings": live audience recordings of Andres Roots performing at various hometown venues in 2016-2017. The settings range from the street to tiny bars and medieval churches; the only studio cut, "Blues For Halvo", was recordedas a demo for an Estonian-made 7-string guitar from the 1920's, renovated by Halvo Liivamägi.