Earlier this month, it was reported that there were no Australian artists in the local top 20 singles chart.  In the same week, 70 percent of the US Billboard Chart was populated by American artists. Now, compare that to Japan, the second biggest music market in the world, where 98 percent of all singles, and 76 percent of all albums, are sold are by Japanese artists. In an environment where physical sales are dwindling, Japan still has more record stores than any other country in the ...