>     In a quiet room with a Singing Crystal set, people will hear music
>     emanating from them. The music is never detected by even the most
>     sensitive audio recorders, yet to the listener, they can be muffled or
>     blocked by wearing earplugs or other sound-blocking gear. Accusations
>     of the singing being a psionic phenomenon seem to be disproved, as
>     there are no alterations of brain activity characteristic of psionic
>     phenomena, and the sound is neither blocked nor affected by psionic
>     shields or similar technology.

FWIW (which may be nothing), I really disliked this bit. IMHO Traveler is supposed
to be set in a more-or-less technological universe. This explanation is basically magic.
Or, you've just invented a different sort of psionics.

Why not just make them both audio and psionic? That way audio recordings of the
crystal's music can be made, but they don't have the same impact as the real
thing, so aren't popular or useful (unless you're in withdrawal...). Also, people
equipped with psionic shields have to turn them off to fully experience the music,
which has its own set of downsides.

Just my 2 cents... I actually have a fully psionic musical device in my current campaign,
so I quite like the concept. BTW I like the idea of shared meditation rooms. Could be the
equivalent of the Roman Baths, at least for Nobles.

Jonathan