Related Clues:

• Eight-person band
• Musical group of eight
• Trio + trio + duo
• Pair of barbershop groups, e.g
• One of those pieces of eight
• Decent-sized band
• Set of eight (var.)
• Group and so on going into reverse
• Large chamber music group
• Two trios and a duo
• Wedding band, perhaps
• Smallish choir
• Start of 27 down approaches alien with singing group
• What has sixteen legs and sings?
• In autumn, alien plays music in group