Thank you everyone for the answers.

I will try to transpose part of the song on my computer instead.

I know I have to learn to play in diferent keys, but I'm a beginner in playing music, so it has to wait.

But I would like to ask you for some advice. How much do you transpose/change the key when playing a song - do you change up og down, and in how big steps. Are there any guidelines or is it just a matter of taste?

Mogens