Anyone got any good tips for germinating tree peony seeds?

Info from a recognized expert on the PBS list:

Germination of peony seeds has more mystique than hard fact,
but I'll toss out some observations. Imitate nature. Peony seeds
ripen in early fall/late summer and fall to the ground. They
germinate the next spring in the shade of their parent or nearby. The
best, easiest and laziest method is to follow this lead with NO seed
storage. Plant seed as soon as ripen (the seed pod splits open) and
allow them the warmth and moisture of mild fall weather, followed by
winter chill. Seeds germinate after a warm moist, then cold period.
Germination is in two stages, the first a primary root/radicle after
the warm moist and the embryo after a cool period i.e. spring warmth.
If seeds are stored warm, dry or cold, this cycle is interrupted and
germination will be delayed. In a prime situation seed planted in
fall can bloom in the third spring following.

Expect much variation in species in regard to demand for
warmth, cold, duration of each etc. Seed can take as short as 1 month
or over 6 months to complete their germination requirements and if
delayed expect another year or longer.