You wake up somewhere strange. You have no idea where you are, nor do you remember anything that has happened to you prior to waking up there. All you know is that you don't belong. The sky pulses and dazzles above...
As you walk on, you begin to find similar people like you, lying down, some just rising or wobbling around. They are as confused as you, until someone swipes their finger to reveal something of a screen in front of them. It is paperthin, almost... from a game. It shines in the light from the sky above, and hovers in front of you wherever it turns.
On it, it reads: "You are trapped. Do not be alarmed. You have been put into this experiment to test human ingenuity in the face of foreign lands and challenges. To see just how far we can take our technology. This is a digital world, but don't worry, your bodies are safe. Continue into your inventory and take out your instrument."
"This is your lifeforce. This is your ticket back to your body. Collect the sheet music scattered across this area, and they should reveal to you a song. Play it, and your next task will be presented to you. Good luck."
These are your instructions, and nothing more is presented. No one else is around, but you feel like you're being watched. The sky pulses and whirs to your suspicions.