Viola Caipira Rio Abaixo is a free Android application that teaches you the most used chords in the Rio Abaixo tuning in the keys of C Major, D Major, E Major, and F Major. The app is designed to help you learn the basics of playing Viola Caipira and is perfect for beginners who are just starting.

The app is easy to navigate and features a simple user interface. It is focused on teaching the chords only, but in the future, the developer, TechRCS, promises to add duet scales and a tuner.

Overall, Viola Caipira Rio Abaixo is a helpful tool for anyone who wants to learn Viola Caipira and is looking for an easy-to-use application to get started.