Good morning.
There is a button at the top of the UI which toggles music off, you do not need to use the console.
There is no link between drinking soda and any scene. Whoever told you that you needed to drink soda to unlock a scene was mugging you off.
Most items that you buy are not needed to be used, simply having them in your inventory is enough. You advance the story by exploring, meeting people, talking to people, reading what they have to say and following their instructions. The Goals screen also contains useful hints.
Please note that using Unren or the console is possible but not recommended. Deeper isn't a basic visual novel with only one or two variables to change and messing with the values can serious screw up your save file. In the last 4 months the overwhelming majority of bug reports that I've had were from people using cheats and save file editors. There will be a bug fixed version uploaded this weekend for all reported errors.
Guys if you need help with story progression, it is useful to people reading if you can give a clear concise explanation of where exactly you are, what your last interaction was and what you have done since then. "Laura wont talk to me in the street anymore" or statements like that aren't going to get much of a response because it doesn't contain any information.
As always I invite people to join the Discord and ask questions there. There are always people online who are happy to help or just chat.
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Please don't report bugs with the android port that was recently posted. I did not permit the port, it is an unauthorised copy and I am in no way responsible for any content, links or any harm that is done to your device because of it. There will be an official android port once Deeper is out of alpha, I strongly urge people to avoid using any third party mod or port.