 Complete the following phrase:  The stage performances of The Wall ended with Outside the Wall after The Trial, where the performers came walking over the stage in front of the now demolished wall, playing acoustic instruments and singing the vocal tracks. Waters played clarinet, and recited the lyrics, while the backing singers sang the lyrics in harmony. David Gilmour played mandolin, Richard Wright played accordion, Willie Wilson played tambourine, Andy Bown played 12-string acoustic guitar, and Snowy White replaced by Andy Roberts for the 1981 shows, Peter Wood and unusually Nick Mason played 6-string acoustic guitars. A similar format was used for the track during Waters 2010-2013 tour, 