Okay! It’s really easy!
First, go to here! and upload all the music you want for your playlist. Then click on “My files” in the top right corner, go to whatever song you want, click on that song and it will lead you to a new page. Once on the new page in the middle right side it should say; “Direct hotlink” Copy that.
Next, go to here! and paste all the songs you want into the tracks. Click “Generate code”, paste it on your blog and you’re all done!
I hope that helps! c: