Ecco Beach (a + o –) is a song and a video that NCM and I made in 2013, as a + o –, the collaborative curatorial practice we shared from 2013 to 2015. I composed the track; the synthesisers, drums and production are ours together. It came out as a single on 5 December 2025, a week before Unreleased 2008–2014, and its official video was published on rt4aVEVO the same day.