TR_VOICE, What's it really for?

Hi all, 

Does anyone have any additional input regarding TR_Voice. Obviously it assigns a voice designation to an artist, but I am trying to see beyond that and how it may be useful for Service Reps or for finding artists in the database with a specific voice style quickly.

It does not seem to produce text search results in Product Search (which was what I was hoping) and roles/credits seem to be the actual information that displays in Performance details. 

Has anyone found some specific use for the voice designation when adding artists? Also, it seems you cannot change the designation once it's saved and you'd have to delete the artist if it was added incorrectly, etc..

There are of course other ways too make the information searchable via test product search, I am just curious specifically about the TR_Voice system table and how it can maybe be made useful on the ticket sales side.

Thanks so much!

Tim