A website serves as a centralized location that an artist can showcase and be in full control of all of the aspects of his brand. This piece is absolutely integral for growing a brand online. Websites are an appreciating asset.
The cornerstone for any artist is their visual brand. What makes you you? How do you differentiate yourself from your competition? High quality video, photo, and graphic design.
In this day and age, social media is where you interact with your fan-base constantly. You want to ensure that each and every platform is fine-tuned to show off who you are, what you do, and why you do it. Your whole story and brand must be on display.