Hello @liapp73,

To remove the author and date information use below given CSS.

For this go to Admin Panel > Appearance > Customize > Additional CSS and paste below given css.

.single-post-meta {
    display: none;
}

Now to set the music you can use the plugins or you can also do it manually adding the java scripts.

Hope this helps.

Best Regards!!

Hello @liapp73,

To have the music in the background you have activate the child theme .

Child theme references :

https://codex.wordpress.org/Child_Themes

You can also create the child theme using the plugin and below is the link to one of them.

https://wordpress.org/plugins/wp-child-theme-generator/

After creating the child theme in your child theme create file header.php. After creating the header.php file paste below given code .

https://gist.github.com/anonymous/c46b152e9b5022cf96027619aaf8a87e

Note: Replace the URL with the URL of the audio file obtained after uploading it in the WordPress Media section.
Hope this helps.

Best Regards!!

Hello @liapp73,

Glad we could help you !!

If you have any issues further, please feel free to post your queries and we will happily help you further.

We will really appreciate if you could help us too by rating our theme in WordPress repo here:-

https://wordpress.org/support/theme/photo-perfect/reviews/

Best regards !!