Matt Cameron Reveals if New Soundgarden Album Is Done, Opens Up on Hearing Chris Cornell’s Voice Again: ‘It’s Been Tough to Solo Up That Voice and Hear Him Loud and Clear’  Ultimate Guitar“It’s been a really amazing and bittersweet process.” Matt Cameron on the emotion of making a new Soundgarden album using demo vocals recorded by the late Chris Cornell  LouderSoundgarden Unlikely to Release Final Album Before Rock Hall Induction, Drummer Says  Billboard“It’s been a really amazing and bittersweet process.”…  inklEverything We Know About Soundgarden’s Posthumous Album  PearlJamOnline.it