Hi!
I resently bought a used piano, a Zimmermann Chippendale from somewhere between 1970-1985.
And I'm trying my best tuning it

(first time owning and tuning a piano)
I've been trying out TuneLab s Android version,
and I have a few question:
- I read somewhere that I should lower the pitch into tune, not raise it up to tune. Is this correct?
On guitars we do the oposite, why the difference?
- My piano was generally 1 semitone flat, not tuned for a long time. Will this give me problems when tuning? I see that my previous tuned keys, goes of by some 7-15cents. Is it me not tuning correct or is it because of the major flat previous tuning?
- I find it hard tuning to correct pitch, aiming for -1c to +2c. I use a K&M 166 tuning lever. I guess a longer lever would be better, right?
-I've come to D6, starting from A0, and it doesn't sound that good. Should I expect to do a second full tuning before things are setling into place?
Thanks
Geir