Related Clues:

• E to E, e.g.
• Do to do
• Quartet doubled
• 'The Light in the Piazza' song
• Square-dance group
• La-la, e.g.
• ''Maids a-milking'' group, e.g.
• Quarts in a peck, e.g.
• Ennead minus 1
• Ska band, perhaps
• C to C, e.g.
• Good-sized ensemble
• Two quartets
• String group, maybe
• Two quartets combined