[mythtv] improvement to MythMusic RIP location

[Kyle Rose]

>> Personally, I'd like to see segregation by first letter happen
>> automatically once the number of entries at a particular level
>> (artist, album, etc.) rises above 4 or 5 screenfuls, so I don't have
>> to hit PgDn 70 times before getting to "S".
>
> You do know about 'splitartist', right?

Guess not. :)  I'll enable that tonight.

Cheers,
Kyle