Thanks for sharing. This is getting into territory that non-musically trained hearing people would probably have difficultly, but can you distinguish between a C major chord and a C minor chord? And do you have any other feelings about it, like one sounding sad or happy?

I don't think any of this is particularly relevant to understanding spoken language, but I'm just curious about your outcome.

I'd be surprised if a majority of current CI users could distinguish e.g. middle C from C# (not identify the note, but just perceive a difference between them), but I don't know that many CI users.