The Apple Effect - $P, $AAPL, $FOSL

As the markets wait to see what happens with Spotify, Pandora ($P) is now looking to explore strategic alternatives (and we're listening to"This House is on Fire" by AC/DC as we listen to this). Is this also Amazon Effect? The Apple Effect? After Rdio filed for bankruptcy not long ago and Soundcloud has taken on more debt, it's clear that the music spac…