[some1else]

There's very little in the article about "how" sound reshapes "networks" in the brain. It's pretty reasonable to expect that hearing different sounds can cause different neurons to fire, though (considering you can upload information into somebody's brain by talking to them).

[quantadev]

The important discovery is not that sensory experiences correlate strongly with specific areas of the brain. That's been known for decades. What I think is possibly new here is that the musical waves are genuinely getting "in sync" (temporally). Neuron firing is too slow for this to happen due to the normal conventional interpretation of how the brain works, which is that info travels from synapse to synapse. It essentially disproves the "calculational" (synapse based) model of consciousness, and it proves that even qualia itself is based on waves.

Sure it's possible that something akin to simple harmonic oscillator spontaneous synchronization could be happening (i.e. this: https://www.youtube.com/shorts/RYeNu159Sgc) but even if this 'dumb' sync is playing a role it still isn't evidence against the wave-based nature of qualia.