“Some artists without ‘must-see’ status may find touring difficult this summer, or be forced to make extra concessions. The economy is forcing fans to make choices about how they spend their music money.” It’s a problem because “in the past decade, when radio airplay and record retail revenue – formerly the biggest sources of income for musicians – have all but disappeared due to Internet downloading and the iPod revolution, music acts have come to rely almost solely on live performances for their livelihood.”