Hey, my name is Marc I'm 15 years old and I really like your playback version, I wanted to ask you if I can use it for a cover on my RU-vid channel and if you could unlock/activate your music for smartphones. And can you tell me how I can see that music is blocked for further use. I haven't received any indication that your music is blocked. I'm looking forward to hear from you soon. Thank you and kind regards Marc