The closure isn't shocking. There's been a degree of overlap for months, and it was doubtful that Google was going to keep Songza around indefinitely. Still, this is the sad end to a long saga for one of the streaming music industry's pioneers. Songza was offering predictive playlist suggestions well before the concept took off in other streaming services -- it may not be as unique as it once was, but its impact on internet music might be felt for years to come.