Install the theme

The steps

1. Appearance → Themes → Add New → Upload Theme. Choose harmony-sound.zip — do not unzip it first.
2. Activate it. A notice appears at the top of the admin: this theme requires the following plugins.
3. Click “Begin installing plugins”, or go to Appearance → Install Plugins. Tick all three, choose Install, then Activate.

WooCommerce and Elementor come from the WordPress directory. HB Harmony Core is inside the theme you just uploaded, so there is nothing else to download. Nothing is installed without your say-so.

The plugin must stay active

It carries the widgets, the demo installer, your licence and the update channel.

This split is deliberate: WordPress disables a theme’s code the moment you switch to another theme. If the widgets lived in the theme, your pages would empty out the first time you tried something else. In a plugin, they survive.

If the upload is refused

Some hosts cap the upload size below the theme’s weight. Two ways out:

• Raise the limit in your hosting panel (upload_max_filesize and post_max_size), or
• Unzip the file on your computer and upload the harmony-sound folder over SFTP, into wp-content/themes/.