This month's extraordinary, rich and strange releases are led by Ninja Tune's 20th-anniversary album of new tunes and remixes ("hard to know when to stop throwing the compliments"), Robert Plant's new band ("puts most vintage rockers to shame") and the new one from fellow veteran and "louche Lothario" Bryan Ferry. There's electronica from Magnetic Man and theartsdesk writer Joe Muggs's new Dubstep Compilation, cyber-pop from Tinie Tempah and a terrific new project featuring musicians from Eritrea. Stinker of the Month is the Motown covers record from Phil Collins. Reviewers this month are Joe Muggs, Thomas H Green, David Cheal, Kieron Tyler, Russ Coffey, Graeme Thomson, Adam Sweeting, Marcus O'Dair, Howard Male and Peter Culshaw.