I'll try to break this down for the general population who don't quite understand business.
YOU'RE GOING TO PAY FOR MUSIC ONE WAY OR THE OTHER!
If you don't feel like paying a monthly fee through Spotify, SoundCloud, Tidal, Pandora, or any of the other services, you're going to have to listen to ads. It's that simple.
You can try and jack the mp3's if you want, but that's going to lead to less streaming revenue for your favorite artists, which leads to their label saying they don't have enough money to support some of the people on the label, which leads to cuts, which means that awesome album you just heard from a new artist may be the last one.
Musicians love making music for listeners, all they ask is that people appreciate it enough to help support them in some shape or form.
If you truly (truly) don't have money for any subscription service, then listening on the free version is fine, but I don't want to see people freaking out just because musicians are asking that you respect their craft.