It might be hard to believe that Sonos has already been around for more than 10 years, especially considering it was only in the last few years that its name really started to pick up traction. In that time, the music industry has changed drastically, shifting from CDs to MP3s and personal media players (PMP) to streaming. And now Sonos is undergoing a change as well. Not a good change, mind you. CEO John Macfarlane took to the company blog to announce something its employees dread to read. It is laying off an undisclosed number of its workforce.