Release date: 15.4.2016.
Side A
1. Teeth 2. Kings And Queens 3. Fletcher’s Blemish

Side B
1. Virtually Part 1 2. Virtually Part 2 3. Virtually Part 3 4. Virtually Part

Fourth or 4 is the group’s first all-instrumental album and features a mix of Free Jazz, straight-ahead Jazz, and gonglike psychedelia. It was also the last of their albums to include drummer and founding member Robert Wyatt.