Possible Clues:

• Beethoven's Ninth is in one
• Beethoven's Ninth is written in one
• Setting for many mass movements
• Musical scale — more inky (anag)
• Opens 11 down with code for the musicians
• Is this what the little people need to get into school for Beethoven's Fifth?
• A restrained manner
• Not a major group in the music world
• Setting for half of Chopin's 24 preludes
• Type of scale (music)