Introductions

I'm a Senior citizen, resumed guitar 8 years ago from where I left off 40 years earlier after college. Classical, folk, Spanish are my combined interests, and enjoy singing with others. I took private lessons for 3 years to get jump-started again. I want to learn music theory, transposing on-the-fly, and harmony when singing/playing in a group. Improved finger-picking and shifting keys up and down the neck is also a goal.
This website seems to be perfect for me.
Thank you.