Analogue systems

Hi,

  I've just bought my new minisystem (2 days old), and I'm having 
great fun playing with it.  However, how faithfully should it track 
the keyboard?

  I'm using a Doepfer MCV4 as a midi-CV interface but if I tune C3 
to my other instruments, C4 is a bit flat but managable, but by the 
time you reach F4, it is quite noticable.  I have given ample time 
for the oscillator to warm up.

  Is there somwthing wrong, or is this just a limitation of 
analogue oscillators?

Yours Aye

Stuadh