Go to hypster.com and create an account. 

Create a playlist and add the songs you would like to have on your blog.

Click there to get the music player:

Select the classic player.

Choose the playlist you just created and select autoplay or shuffle mode, if you want it.

Click on customize..

It’s enough if you only change the background and button color.

Click update and copy the code.

Change 370 to 50 and 300 to 15 in the code.

Then you can paste the code in your description or HTML code, depends on where you want it to be :)