Possible Clues:

• 2, one being paid without limits
• Eton-educated composer
• Mozart's British contemporary
• “Rule, Britannia” composer
• Thomas --, 1710-1778, English composer
• Composer contributing to popular newsletter
• Duncan of Obama's Cabinet
• Composer of 'Rule, Britannia!'
• ___ Duncan (Obama cabinet member)
• Composer of 'A-Hunting We Will Go'