“What will the music industry look like in five years? In a new study by Forrester Research, “U.S. Music Forecast 2008 to 2013,” industry analysts attempt to cook up some numbers. No huge surprises here: The U.S. music market is expected to shrink over the next five years from $10.2 billion to $9.8 billion. Digital music sales are expected to grow from 18 percent to 41 percent of the total (as physical product shrinks from 64 percent to 40 percent of the market).„