Tuning and Pitch Adjustment
If the overall pitch of the piano has changed by 15% (or more) of a half-step, a pitch adjustment is necessary before tuning the piano. A pitch adjustment is a quick tuning of the whole piano, just bringing the strings up to pitch. The pitch adjustment prepares the piano for tuning, so that it will sound its best and the tuning will be stable. (In some situations, more than one pitch adjustment may be needed.)
Changes in pitch are most often caused by changes in humidity. Moving from house to house (whether in different cities or close by) usually affects the pitch. If the piano has not been tuned regularly, it is likely to need a pitch adjustment.
If a follow-up appointment is necessary, or we discuss some special work (replacing a set of key coverings, for example, or changing a set of spinet elbows), I will provide a verbal or written estimate before starting the work.