If you are trying to learn to code, like I am right now, and need some help to concentrate, I recommend you try out some sites that produce an ambient sound, which will induce a calmer more focused state of mind.
I am either listening to some rain sound in the background while I am learning or I use the website music for programming, which is also available as a podcast, which is awesome.
It seems as though there are many sites that provide you with calming rain sounds right now. They are all different in some way but in the end it does not really matter which site you want to use.
I am cycling through these three "rain sound" sites:
I really dig a soft murmur as well.