When you establish your personal brand as a musician, here are a couple of things to keep in mind.

1. More is not always better - Do not overload your audience's newsfeed by feeding irrelevant content that can potentially harm your brand.

“Human behavior tells us that this is a more permanent effect than we realize. Once you overload the user, you train them not to pay attention. More clutter isn’t free. In fact, more clutter is a permanent shift, desensitization to all the information, not just the last bit.”

2. The single best way to maintain your reputation is to do things you're proud of - Your reputation is something that you will have to live with in the long term. Therefore, live the life you have taught people to expect from you.

“The most important step you can take when entering a new circle, a new field or a new network is to take vivid steps to establish a reputation. This is the new kid who stands up to bully the first day of school or a musician who holds off on a first single until she’s got something to say.”

[UPDATE]

So, what exactly constitutes a brand value and what does not?

“A brand is expectations and promises, That’s what’s of value.
When somebody stands for something or an organization stands for something, we expect something. They have a brand value.
So the way a human does that is not by social grooming, updating their Twitter account, making sure their Linkedin page is accurate.
Your Linkedin page is a signpost, it’s not a brand.
Your brand is when you walk into the room, what should people expect?
The root of sales is removing fear, social network grooming is hiding, and everybody should blog daily.”