Post Formats is a theme feature introduced with Version 3.1. A Post Format is a piece of meta information that can be used by a theme to customize its presentation of a post. The Post Formats feature provides a standardized list of formats that are available to all themes that support the feature.
Audio post format is the best way to present your audio file. You can upload audio to your server or stream media from audio hosting and streaming service. Use the custom meta box “Audio post format settings” (if not visible, enable it in “