A comprehensive tutorial for musicians. In today's times, when technology is developing at a rapid pace, learning to play a musical instrument or exploring the mysteries of music theory doesn't have to be limited to traditional school lessons or private tutoring. Thanks to access to online resources, we can now learn music online using a variety of music tutorials. In this series, we will present a comprehensive tutorial for musicians to help you master the art of music in a convenient and effective way. CC0 Domena publiczna Understanding the basics of music theory Before we start playing a musical instrument, it is important to understand the fundamentals of music theory. Music theory allows us to understand the structure and principles of music, which is crucial when we want to create our own compositions or improvise. In this series of publications, we will have access to educational materials that will explain basic concepts such as notes, intervals, rhythm, keys, and many more. Learning music theory online can be challenging, but if we are systematic and consistent, we can gain a solid knowledge of the fundamentals of music. It is important to understand that music theory is the foundation on which we will build our musical skills.