Welcome to the club Slayr!
For collaboration its more you record your part then upload it and someone puts it all together xD, so its not that big of a deal if your net isnt THAT great, so dont let that stop you! How long have you been playing?
Kanto! Bro, you have a very pleasant voice, I really liked that cover and I personally think it was fantastic but I dont know what the original sounds like so I cant really compare it to anything. It does sound fantastic though! You should definitely get some members together and do some more songs with them (us).
Kurui that was definitely cool sounding, is this game just going to have an epic OST or what!? I think yessss!