Can scoliosis affect your singing

Unfortunately.. Yes. Singing is breathing, breathing is posture. But it's not hopeless. A lot of people sing with proper technique yet do not all sound the exact same. You can take a handful of singing instructors and ask them to describe the feel and you'll be surprised at the different answers. The reason for this is because they are not all clones with the same body and posture. The smallest thing can change the way somebody stands and feels their body. ScoliOSis is not a small thing and may change the technique quite a bit. The hard part is that you don't want to find a style that will encourage your scoliOSis to increase and you don't want to find a style that is out of reach for your unique body alignment. There is no reason that you can't find "your" technique though. If you are truly serious about this.. dig into what Germany is up to. Good luck with finding your singing voice.