The issue with a low carb diet is that the second you eat carbs again you will gain your "weight" back. Carbohydrates are what retains water in our bodies--Guys, this is a good thing so that we don't dehydrate. Anyone who is on a low carb diet can probably tell you that they are not only thirsty all the time, but they also have to pee all the time because the water goes in, and what isn't used isn't stored anywhere, so it's flushed out. No fun. You will literally be peeing four times an hour.

Low carb can also send you into ketosis which can cause kidney/gall stones and permanent kidney damage. It mimics a starvation diet, which will encourage your body to lower its metabolism to conserve energy. Your body will be taking protein and fat and trying to turn it into sugar because your brain only runs on glucose, and those nutrients will then be missing elsewhere.

Also keep in mind that your muscles are made of protein and thus if you don't do this diet "correctly" your body will begin acquiring the protein it needs directly from your muscles (including your heart) and thus causing more permanent damage and further lowering your metabolism. Basically, you're eating yourself.

My best advice is to eat each macronutrient in moderated quantities (I think the most effective right now is 40-30-30, carbs, protein, fats). All three have a place in our diets and all serve a purpose for our survival. That's why our bodies run on, and process, all three of them. Keep blood sugar levels stable and get a good dose of fiber. No need to obsessively count things and cut things out.

I play the piano as well, and the "muscle memory" is almost scripted. I can only start from the beginning, and I couldn't tell you what notes I'm playing or where I am in the music. If I'm interrupted, I can't pick up where I left off--I have to start over again. The battle isn't accessing the music memory, it's turning off the conscious brain because it only gets in the way.

Music/Singing also helps people with a stutter.