Á toa = without plans, care-free
“Estava á toa na vida, o meu amor me chamou, para ver a banda passar cantando coisas de amor” (Chico Buarque)
Music is a great way to learn a language! You can improve your vocabulary, pronunciation, pitch and tone, and all of that having fun! Try to seek classics, such as Bossa Nova, MPB or even older tunes with a slower beat. The goal here is to be able to hear the words, and internalize them as you go. Besides, you can learn about the Brazilian culture and have a “conversation starter” with natives the next time you need one!
Here is the link: https://www.youtube.com/watch?v=WZWcpEgJZAY