key signature

US /ˈkiː ˌsɪɡ.nə.tʃər/
UK /ˈkiː ˌsɪɡ.nə.tʃər/
"key signature" picture
1.

Tonart, Vorzeichen

any of several combinations of sharps or flats on a musical staff at the beginning of a composition, indicating the key in which the composition is written

:
The pianist checked the key signature before starting the piece.
Der Pianist überprüfte die Tonart, bevor er das Stück begann.
Changing the key signature alters the pitch of many notes.
Das Ändern der Tonart verändert die Tonhöhe vieler Noten.