[squigz]

Muzak but specifically for blind people!

Such an engineer's solution. :P

The glaring issue here would be standardization. Either every place uses the same sounds, or you have to learn a new system for each place you visit using this sort of thing. This is also why you couldn't change notes regularly, which would be boring and repetitive for everyone else.

[pvaldes]

The same instruments should be used for the same things everywhere. Yep. This is the idea.

Or at least to navigate a complex multistore building with a lot of repeated elements. I wonder if a videogame could be designed as a soundgame for blind people replacing images by sounds.