I'd like to hope this answer will be useful for many other similar questions. Here's how I went about putting it together...
1: Google synonym turmoil
2: Compare the relative frequency of several of the synonyms returned...
...run Google NGrams on... turmoil,confusion,upheaval,turbulence,tumult,disorder,commotion
3: Select some synonyms that are at least as common as the original target turmoil
4: Run NGram to compare some common short phrase, such as heard the XXX
(using several search texts with different values for XXX, as selected from the first NGram)
5: Pat yourself on the back if you get a "clear winner"...

I can't "explain" why commotion has such strong associations with sound / noise - but even though I as a native speaker fully expected that result, it seems to me anyone else could follow my "recipe" above and reach the same conclusion with just as much confidence as I would have had even without the chart.