He&#x27;s right. For a local variable that&#x27;s only going to survive a half dozen lines? I&#x27;d use your buddy&#x27;s name over yours.<p>For a class member or anything with a long life, I&#x27;d use something longer and more descriptive than yours.  We already know it&#x27;s an MP3 from the type.  The name can tell us what it&#x27;s used for:<p><pre><code>  MusicMP3 nextTrack = new MusicMP3();</code></pre>