A club-mate always says, if you are looking for a helping hand, then look at the end of your arm.
Regex: Roman numerals in uppercase
Regular Expressions
Converting roman to arabic number and vice versa, - implemented as action groups -
Converting roman to arabic number and vice versa
All music related knowledge stuff is up to you.
G flat = Ges
G sharp = Gis
English B = German H
http://en.wikipedia.org/wiki/Note
"Elimination of same string elements on repeated occurrences"
This might be possible by tricky usage of Mp3tag export scripting language, but never did it before, so the current status of this wish will be "impossible" further on.
DD.20101024.1935.CEST