Music theory is essential to learning the piano because it allows you to have a solid foundation. Without the fundamentals of music, you could very well learn songs and play tunes but you’ll never have the foundation to grow into a professional music who can play in all 12 keys, transpose music, improvise, play on demand, and work with other musicians.
It prepares you for all of this. It starts with learning basics and fundamentals like notes and scales, then intervals and chords. There’s tons more to learn about music theory.
Why Music Theory is so Important
Theory is essential not only because it gives you a foundation but teaches you the language of music.
Music Theory Reason #1