Google now lets you upload 50,000 songs to the cloud for free | The Verge

By Chris Welch. (February 25, 2015).

Google's taking a big step out in front of its music streaming competitors today. The company has just announced that effective immediately, you'll be able to upload up to 50,000 songs from your personal music collection and store them in the cloud through Google Play Music — all for free. The previous limit was 20,000.

Glad to hear this.  Saves storage space, facilitates music management, and eases synching among devices. However, I'll continue to back up all my music (as I do my other files) on my computer hard drive, which in turn is backed up by cloud storage and by CrashPlan, online and on another hard drive..