An (almost) octave of an organ keyboard, the twelve notes of the dodecaphonic scale. Drawn in Inkscape. 键盘 器官 地板 器官键盘
illustration of piano keys on abstract floral grungy background 地板 密钥 音频 Piano Keys on Abstract Background
Standard 88-key piano keyboard. Distance between octaves is approximately 165 mm, per http://en.wikipedia.org/wiki/Musical_keyboard. Relative key dimensions similar to some commercial electric pianos. 地板 键盘 标准 88 键钢琴键盘
A piano bar wallpaper inspired on the Open Clipart image http://www.openclipart.org/detail/i-love-music-wallpaper-by-mystica. 地板 栏 音乐 钢琴酒吧壁纸