DIY musician has the great and detailed post on step to get your blog up and running:

 

how-to-start-a-music-blog

A quick guide to social media management for musicians

Wondering how to properly size your social media images?

Or which days you should post on each platform?

Or what kind of content performs best?

And between what hours?

This infographic from On Blast Blog will help you keep things straight:

Read more at DIY musician