Excerpt from info displayed by xev           Picture
keycode 180 (keysym 0x1008ff18, XF86HomePage)   house
keycode 179 (keysym 0x1008ff81, XF86Tools)   quarter-notes
keycode 163 (keysym 0x1008ff19, XF86Mail)      envelope
keycode 172 (keysym 0x1008ff14, XF86AudioPlay)  >/||
keycode 122 (keysym 0x1008ff11, XF86AudioLowerVolume)  speaker
keycode 123 (keysym 0x1008ff13, XF86AudioRaiseVolume)  speaker
keycode 121 (keysym 0x1008ff12, XF86AudioMute)  x'd-speaker
keycode 148 (keysym 0x1008ff1d, XF86Calculator)  Calculator