When your music is online, you want to collect as many email addresses from your fans. I had some tracks that I wanted to use to give away as a free promo. If you don’t have a mailing list setup then this will give you an idea of some free options. I needed a way to collect emails from fans in exchange for some free music. Once they sign up I could inform them with some newsletters with new releases and free music. I chose two different options: WordPress Double Opt-In Manager Widget Bandcamp
