Rabbit and Dog.
Six harmonies
A classical pairing: two signs that combine and quietly hold each other up. On the wheel the two signs sit 5 places apart.
The six harmonies are pairs of year signs that combine into something neither is alone. Traditionally they are the easiest private pairing: the two tend to settle into a shared rhythm without much negotiation.
The risk is that ease becomes the whole relationship. A pair that combines well can avoid the hard conversation for a long time because the day-to-day runs smoothly.
Beyond the year sign
We compared 200 Rabbit and Dog birthday pairs born between 1950 and 2005. The year sign changed little across those readings. Even classical clashes covered nearly the same range as harmonies.
The deeper charts varied much more. One person's nature could support, restrain, or closely resemble the other's. The year sign sets a tone. The two exact birthdays decide the pair.
What this leaves out
The year animal is one of eight characters in a Chinese chart. The day pillar says more about a person than the year, and a full reading compares all of them. The year also turns at Start of Spring, around 4 February, not 1 January, so people born in January or early February usually belong to the previous year's sign.