First, login to your Artist account on ReverbNation.com. Then, click the drop-down menu at the top of your page labeled “Content” and select the “Songs” option.
From there, click the “+ Add a New Song” button. You’ll see a pop-up window that will guide you through uploading your MP3 file, adding the song title, setting the availability (streaming, download) of the song, and setting a price.
If your song won’t upload, make sure your MP3 file is under 8mb in size. If you need to convert your song to a smaller file size, use this guide here.