Wouldn&#x27;t it be interesting if, culturally, we more often hear brass timbres than string timbres when we are by a saturated blue ocean or looking at a bright blue sky (tense action scenes in movies, on horn parts in the latin-themed soundtracks to our summer vacations)? Then presumably someone with the capacity for synesthesia could be statistically more likely to develop the specific synesthesia in question.<p>It&#x27;s virtually impossible to be quantitative about any of that, of course.<p>There&#x27;s fMRI research being done on synesthesia [1], but I&#x27;m unaware of any studies that go into the exact correlation between specific colors and specific timbres.<p>[1] <a href="http:&#x2F;&#x2F;ist.ksc.kwansei.ac.jp&#x2F;~nagata&#x2F;nagata_lab_folder&#x2F;nagata_lab&#x2F;publication&#x2F;pdf&#x2F;ICCSA_takahashi.pdf" rel="nofollow">http:&#x2F;&#x2F;ist.ksc.kwansei.ac.jp&#x2F;~nagata&#x2F;nagata_lab_folder&#x2F;nagat...</a>