Kidneys & Banana

Much warmer today, but much wetter too. So here is an action shot from my work bench.
Pictured here are some of the keys on the bottom half of an oboe. The ones for the right hand little finger (Low C, C# & Eb if you're playing along at home...) are shaped a bit like kidneys, so are sometimes refered to as the "kidney keys".
Above them, in this shot, is the banana key. So-called because...oh, you get the idea.