If you want some unique stuff-- On
www.garageband.com -- there's some really good stuff there (I'm probably close to your mom's age, so if I like it - -she might)
Find the stuff my Dust Radio (february Day is excellent) or Anne Heaton (these are indie bands that haven't been signed to a label yet -- but dammit, should be) Mom could be the first on her block to know of these bands..
