FSHARP

Tough key for pianists

• Black key that's the first of a threesome

• G neighbor

• Half step below G

• Irving Berlin's key

• Key of Beethoven's Piano Sonata No. 24

• Key of Chopin's Barcarolle

• Key of Mahler's Symphony No. 10

• Major scale in which B is the only natural

• Only key Irving Berlin composed in