Hello, Susan,
This is a lovely and well-developed triolet—an immersive evocation of spring’s emotional and sensory intensity. The repeated lines are evocative and mostly flow well, though I wonder if the rhyme occasionally feels a bit driven by necessity rather than natural progression.
You might consider a few small tweaks for smoother flow and internal logic. For example:
To light the empty chambers of my heart,
the chestnut trees hold out their candelabra.
Spring overloads the synapses which smart
to light the empty chambers of my heart.
In scents of bumptious daffodils I chart
birdsong as fervid and intense as opera.
To light the empty chambers of my heart,
the chestnut trees hold out their candelabra.
This version preserves your vivid images while softening some of the line breaks and giving the phrasing a more reflective cadence.
Of course, the original has its own rhythmic charm—just offering one possible variation in case it proves useful.
Cheers,
...Alex