Yeah, forgive the idiosyncratic terminology... I call auditory hallucinations (particularly when experienced in relative silence) closed ear audials by analogy with closed eye visuals; I don't think anyone else does...
I'm not sure whether I'd say my CEAs on DiPT (and some other psychs) are perceived as inside or outside my head. They tend to be attentionally modulated: they get louder and more intricate the more I attend to them, and I tend to notice them only in silence. But it's not like just imagining music: it's not out-there, directionally, but it's out-there in the sense that it is (aside from attentional modulation of intensity) not under my control. It feels like hearing externally produced music in pretty much every sense other than in its having a location outside my head.
[I've described my experiences of CEAs on DiPT at length elsewhere, if you're interested, in a
trip report.]
I find, at least at the dosages that I've taken methoxetamine at so far, that its sensory effects are somewhat attentionally modulated too. Most notably the kinaesthetic hallucinations (sense of being bodily moved, like on a rollercoaster, while objectively lying still... closed body kinaeals, if you will

), which have been the most dominant effects I've experienced so far; but also the CEVs.
ETA: What route of administration are those dosages for? I find sublingual seems twice as intense at peak (and twice as fast to reach peak) as insufflated.