This a plugin that will make a 'Mixed Tape' post from mp3 file and play list shortcode.

LoganSix

This a plugin that will take shortcode for track listings and make a ‘Mixed Tape’ or ‘Mix Tape’ by turning the mp3 file links into music players and creating a play list of the tracks. The play list is a second shortcode that can be placed anywhere in the post. 
The play list can also show the tracks as a single album by changing the type. This will only show one link to the artist name added to the play list. The play list icon can be changed to show the mixed tape, cd, cd box, head phones or any image. The image should be small enough to fit inside the play list.
There are no admin options for the plugin.
Usage information can be found on the <a href="https://wordpress.org/extend/plugins/wp-mixted-tape/faq/" rel="ugc">FAQ page</a> and there are examples on the <a href="http://www.dean-logan.com/blog/plugins-and-widgets/wp-mixed-tape/wp-mixed-tape-test-page" rel="nofollow ugc">Mixed Tape Test page</a>.
The plugin uses <a href="http://www.1pixelout.net" rel="nofollow ugc">1PixelOut</a>‘s standalone <a href="http://wpaudioplayer.com/" rel="nofollow ugc">WordPress MP3 player</a>, but should not conflict with other plugins using the player.
The plugin creates a search link to <a href="http://musicbrainz.org" rel="nofollow ugc">MusicBrainz</a> music database for the artist of the track.

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