Puzzle #494 - Topology! *handwaves* (Witness Puzzle)

Dawgup (also known as Kem) had a very weird and specific request. He wanted a "symmetry sound dot puzzle with real bird sounds". This is a kind of puzzle that appears in one area in The Witness, and a symmetry version of it exists on the expert difficulty of the randomizer. I... may have added an additional twist on top of anything that appears in The Witness, but it's the sort of thing that could definitely appear.

Sound Pattern

penpa interface

Draw two rotationally symmetric lines starting at an S (start point) and ending an E (endpoint). These lines must pass through all hexagons (sound dots) in accordance with Witness rules.

A hint exists inside the 4x4 box on the right. The sound cues exist around the 4x4 box. A large note-taking workspace has been provided. (fill these areas in with another color of surface to reveal the hints/decoding).

I'm about 95% sure this is unique but it's always hard to be sure with topological deductions, especially with this puzzle.