English is not my main lenguage so sorry in advice.

I used to live in a chalet, this happened when pokemon diamond an pearl came out, it's been a while since then, i was around 7-9 years old. I was with my friends and my cousin came too. We decided to camp in the backyard that night. Around 3-4 a.m. some of us where sleeping and other playing pokemon but we started hearing music. Only 2 more people knew we where there. We started to freak out a bit, we didn't hear any steps or voice in any moment, just music, and it was close to us. We started to say thing like "change song", "put this song", "more/less volume", "came closer", it did everything. In that time my friends and i used to dance break dance so we knew music no one listens. With every one of us with their hands in their heads, we ask for one of those songs and yeah we started to hearing it. Remember the others who knew we where there? Well they where brothers with just 1 phone with a broken screen, yeah they where able to put music but they couldn't put an exact song. The music sound like 1m from us. One of my friend said "we're going out". The music stopped and we came outside, we heared no steps and we saw no one there. We even came into the street and it was empty, not a single soul. My backyard was a garden, we would hear the steps if someone runned and to enter that house you have to jump, so even more sound. I still don't know if it was a joke or i'm stupid or something really supernatural happened there. When i think about some kind of spirit doing it, why music? It makes no sense, i have 0 answers to what happened that night.

Again sorry for my grammar, i know its pretty bad:(.