I want to clean up my SD card but haven't found an easy way yet to unselect my offline synced music quickly. Especially songs added from playlists have to be found one-by-one and then deselected. Tips/Suggestions? 

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According to the whistleblower, the results of these studies were often dubious. “We occasionally resorted to ‘playing’ with the data that had originally failed to show the expected result,” he says. “This was done by altering the statistical method until any statistical significance was found.” He adds that the company sometimes omitted negative results and played down harmful side effects. After all, post-marketing studies don’t face the scrutiny that pre-approval studies do.
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