Related Clues:

• Low blow?
• Big brass
• Wind instrument
• Band member
• Low note provider
• Jazz combo instrument
• Part of a marching band
• See 15-Across
• Big brass instrument
• Part of a jazz combo
• See 63-Across
• Big blow for a band?
• It's heard in 'Besame Mucho'
• Orchestral heavyweight
• Lisa Simpson plays it