This is WordPress default audio playlist added in page. So, just create page and Add Media and create audio playlist. After that, you can select the page from Appearance – Customize – Theme Options – Playlist.
New Releases
Band Members
An example of a four-member rock band
Upcoming Events
Discover our newest albums and singles
This theme allows you to add a completely customizable Promotion Headline. You can choose the content type — post, page, category, or image — that you want your visitors to see or read at any cost. Also, you get to choose the content position and how you want your content to be displayed. You can use the section to promote or announce exciting news about your music to your followers.