There is an unofficial album or bootleg free called "The Zabriskie Point Sessions" and you can find it in Google or per-2-per programs like Ares, Etc

Yes, he is Robert Wyatt

He plays the guitar, bass, banjo, keyboards, drums, harmonica and Saxophone

That concert is the PULSE

Estoy de acuerdo contigo, sin duda es el mejor disco solista de Gilmour, About a Face tmb es bueno, pero On an Island a mi forma de ver se lo lleva por mucho, otra cancion que me encanta es la de Where we start, que tambien pronto subire...