Possible Clues:

• Mus. key with three sharps
• Key of Beethoven's Symphony No. 7: Abbr
• Key with three sharps: Abbr.
• Key of Beethoven's Sym. No. 7
• Key with three sharps: Abbr
• Key of Beethoven's Symphony No. 7, briefly
• Key related to F# minor: Abbr.
• Key of Beethoven's Symphony No. 7
• Mus. key
• Key of Schubert's 'Trout' Quintet: Abbr