iarobinson

Freedom Podcasting turns any WordPress site into a fully functional podcast publisher.
Features:
<ul>
<li>Generates a standards-compliant iTunes / Podcast Index RSS feed at <code>/?feed=fp-podcast</code> (optionally also <code>/?feed=podcast</code>)</li>
<li>Adds episode-level metadata to posts: audio URL, episode number, season, type, explicit flag</li>
<li><code>[fp_player]</code> shortcode embeds a clean HTML5 audio player anywhere in your content</li>
<li>Settings page under Settings > Freedom Podcasting for show-level podcast metadata</li>
<li>Optional one-click connection to <a href="https://freedompodcasting.com" rel="nofollow ugc">FreedomPodcasting.com</a> for managed audio hosting — upload files directly from the post editor</li>
</ul>
RSS feed is compatible with:
<ul>
<li>Apple Podcasts / iTunes</li>
<li>Spotify</li>
<li>Google Podcasts</li>
<li>Pocket Casts</li>
<li>Overcast</li>
<li>Any standard podcast directory</li>
</ul>
<h3>External Services</h3>
This plugin can optionally connect to the FreedomPodcasting API to upload and host podcast audio. This feature is entirely optional and is only active after you explicitly authorise the connection from the Settings page.
When connected, the following data is transmitted to FreedomPodcasting servers (https://api.freedompodcasting.com):
<ul>
<li>Podcast show metadata (title, description, author, artwork URL)</li>
<li>Audio file uploads</li>
</ul>
No data is sent until you connect your site. You can disconnect at any time from Settings > Freedom Podcasting, which immediately revokes the access token.
<ul>
<li>Service home: https://freedompodcasting.com</li>
<li>Terms of Service: https://app.freedompodcasting.com/wp-plugin/terms</li>
<li>Privacy Policy: https://app.freedompodcasting.com/wp-plugin/privacy</li>
</ul>

Freedom Podcasting

Publish a podcast RSS feed from WordPress. Optional audio hosting via FreedomPodcasting.

webdesignby

This plugin makes it simple to add custom music playlists including:
<ul>
<li>Preview from iTunes</li>
<li>Artwork</li>
<li>Artist Name</li>
<li>Song Title</li>
<li>Album or Collection</li>
<li>Links to iTunes</li>
</ul>
Unlimited Musicboxes and tracks. Drag and drop re-ordering of tracks and Musicboxes. You can set the widget to play automatically or require the user to press play first. The widget will play through all of the tracks.
PHP 5 >= PHP 5.3.0 or Required
<a href="http://www.webdesignby.com/wordpress/plugins/musicbox/" rel="nofollow ugc">Learn More About Musicbox</a>
<h3>Usage</h3>
<ol>
<li>Click the new Musicbox menu item in wp-admin</li>
<li>Create a new musicbox</li>
<li>Add tracks to the musicbox</li>
<li>Repeat as necessary</li>
<li>Add music box to pages using the Musicbox widget</li>
<li>Add music box to pages using the Musicbox shortcode </li>
</ol>
Shortcode ex. 
[musicbox musicbox_id=”1″ description=”1″ autoplay=”1″ tracks_perpage=”2″]

Musicbox

Add custom playlist widgets to your website including preview clips from iTunes.

Freedom Podcasting vs Musicbox