From how he got the name "Doc" to playing on a bugle without a mouthpiece, Doc Severinsen's career is one built on hard work and an understanding that you just have to do the job...which means, you had better practice and get your act together.   This conversation sheds great light on why Doc is the greatest trumpet artist of all time.  His trumpet artistry and showmanship is only outdone by his humility and his humanity.  The world (and especially the music world) is a better place because of Doc Severinsen.