I would have bet a cheesecake that Mrtennis would enter this thread and point to bloom as a tonality affect. Some things never change.
In my experience, bloom has nothing to do with tonality. Bloom has much to do with the amount of time the fundamental note will last. The piano is THE test here. The texture of the note, i.e., its signature made up from a grouping of strings, can be discerned.
Does the piano note fundamental immediately terminate without any follow on harmonic decay? If so, there is no bloom. This is the classic failure of digital in its early years. And unfortunately, far too many line stages destroy this capability as well. No peaks or valleys in the tonality curve are going to make or break this characterization.
The other half of the picture is the harmonic overtones, the harmonic decays, i.e., the follow-on, of that strong fundamental note. This tends to be more about the system's low-level resolving capability to hear the sound diminish for a long time in a silent background. Without the bloom, you never get to this point. But a strong bloom does not guarantee the long follow-on.
Cables can indeed destroy such system capabilities, but unless you have electronics that can pull this off, cabling is not going to matter.
