fsharp Half step below G Black key that's the first of a threesome Musical neighbor of G Major scale in which B is the only natural Key of Scriabin's Piano Sonata No. 4 Key of Chopin's "Barcarolle" Irving Berlin's key Tough key for pianists Only key Irving Berlin composed in Key that's oxymoronic at school? One of the black keys G neighbor Key of Beethoven's Piano Sonata No. 24