Autor:Patrick-Emil Zörner (Paddy) Das Bild ist lizenziert unter der Creative Commons Attribution ShareAlike 2.0 Germany Lizenz: This file is licensed under
following images: File:C_Dur_Klaviatur.png licensed with PD-ineligible 2007-02-06T11:10:11Z AndreasPraefcke 258x168 (1280 Bytes) C-Dur-Tonleiter Cropped from