title: Check if a audio file is a valid as MP3 in shell
body: <p>I am writing a Bash Shell Script that needs to determine if a provided MP3 Audio file is valid or invalid.  How would I accomplish this in Bash?</p>
  
  <p>eg fake: <code>&gt; file.mp3</code> or <code>mv file.txt file.mp3</code></p>