@allhaters: it's not google's fault that songza is us only. they bought the service as it was.
some are saying : kill it and merge it in google music. from a ux point of view, I would say au contraire, merge google music in songza. songza is an experience, google music a feature.
@google: please make it available where gmusic is available & add "download this playlist" or "buy this playlist" minus songs we already bought/have in gmusic. +Google Play
songza is/was insanely addictive!! there is a playlist for every life situation !! and it's crazy accurate!!