Related Clues:

• Opening passage
• First course
• First words
• 45 and 78, e.g.
• MC's job
• Turntable settings
• Emcee's delivery
• Starting words
• Freshman course word
• NASCAR nos.
• High ones may produce a roar
• It may begin with "Here's"
• Opening speech
• Motor info
• Keynote precursor