The covers include tracks by Robert Wyatt - as author and/or composer - as well as all the Soft Machine and Matching Mole tracks that he performed during their creation, in the studio or on stage.
This is also true of the many collaborations of which he was a significant co-creator. Hatfield And The North's Calyx, Brian Eno's Music For Airports - Part One or John Greaves' The Song are all examples of possible covers.
I also consider a cover to be a song from the early Soft Machine repertoire (with RW) played by the "post-Fourth Soft Machine" or a fortiori by bands such as Soft Legacy, Soft Bounds etc.
Finally, there are covers of covers whose reference will be Robert Wyatt's interpretation rather than the original version (Charlie Haden's Chairman Mao or Chic's At Last I Am Free, for example).
So you'll understand that I'm taking a few liberties in deciding the songs covered here: Robert Wyatt's position in the artistic creation process is more important to me than the strictly legal status of the works.