Billboard -Overall for the full year 2013, digital track sales fell 5.7% from 1.34 billion units to 1.26 billion units while digital album sales fell 0.1% to 117.6 million units from the previous year's total of 117.7 million, according to Nielsen SoundScan. While industry executives initially refused to attribute the early signs this year of digital sales weakness to the consumer's growing appetite for streaming, in the second half of the year many were conceding that ad-support [...]
