What is the purpose of a piano chord wheel and how can it help in understanding chord progressions and music theory?

A piano chord wheel is a tool used to help musicians understand chord progressions and Music Theory. It shows the relationships between different chords and keys, making it easier to create harmonious progressions. By using a chord wheel, musicians can quickly identify which chords work well together and how they can be used in a piece of music. This can help in composing music, improvising, and understanding the structure of songs.