AM NEWS BRIEF: Apple Taxes, Amazon CD Trade-Ins, Google Music, Digital Music Lawsuits

• How Apple Sidesteps Billions in Global Taxes (NYT)
• Diving Into Amazon's Music Trade-In Service (Digital Audio Insider)
• Tax Day $2.99 Albums A Hit for Google Music (Billboard)
• Los Angeles Entertainment Litigation Attorney Notes Uptick in Digital Music Revenue Disputes (LFN)