Ok, I have set up the recording technique now and made my first recording which you can listen to. You find it in the list for the 29th of June.
I managed to make a setup for stereo recordings. An old friend of mine was of great help in trying to understand how to deal with the microphone input of my laptop.
Don't think of my recordings so much as performances, they are more personal moments of relaxation or of exploring how music works.