Ah, is it becoming personal? I wonder if you have already guessed that the 'unsinger', as you rather cruelly describe it, is myself.

I have some problem with my hearing. Without using earphones, a note that sounds in tune when I sing it proves to be out of tune when I listen to a recording of it.

There's a bit in my first post that suggests why. (31 Mar 05:12PM)

The needle bit is, I admit, misleading. It's been years and years since I had a tuner with a needle. They always broke. My preferred tuner has a wide arc of leds. Red to the left, red to the right and a single green spot in the center (a bit like politics in Manchester). This is much more stable than the old analogue tuners. I have seen an application for a mobile phone which looks like the old analogue tuners but has the modern, digital stability.

Once the problem was identified I roped in the tuner as an independent witness. With practice it got better. Not perfect but better. Hearing something I have done for many years, and not without success, described as impossible is just a bit irritating.