How to Listen to productivity music free?

[Boss larry]

Music definitely does have its numerous importance, one of which include the fact that the right music in the right mood can improve productivity at work or better assimilation while studying. I personally love every bit of a tiny little app on my phone called Rainy mood. These are sure boredom killers. Other similar websites I came across:

RainyMood.com
EndlessVideo.com – Fireplace
Coffitivity.com
Noisli.com
Soundrown.com
SimplyNoise.com
ASoftMurmur.com