Facebook thumbnail links (with audio player)

Extra info: I’m using the Audio Player plug in.

Warnings I get from Facebook debugger:

Meta with name instead of property:
The meta tag on the page was specified with name ‘author’, which matches a configured property of this object type. It will be ignored unless specified with the meta property attribute instead of the meta name attribute.

Extraneous Property:
Objects of this type do not allow properties named ‘og:audio:title’.

Parser Mismatched Metadata:
The parser’s result for this metadata did not match the input metadata. Likely, this was caused by the data being ordered in an unexpected way, multiple values being given for a property only expecting a single value, or property values for a given property being mismatched.

Here are the input properties that were not seen in the parsed result: ‘og:audio:title’

Thank you,
Dan