[h0h0h0h0111]

>I have never read or heard anything that suggests either found it terribly useful

Allegedly, Mozart transcribed Allegri's Miserere after hearing it performed once in the Vatican: https://www.classicfm.com/composers/mozart/guides/mozart-all....

Perhaps apocryphal, but sounds pretty useful to me.

[kaba0]

I don’t think that it is attributable to absolute pitch, that might not even be required.

It’s “just” insanely good memory for music.

[Bud]

This skill has absolutely nothing to do with whether one has perfect pitch, however.