Roman numeral sorting

[lyapounov]

I know it is a complex issue, but would it be possible to have roman numeral sorted ?

Currently, I have

Concerto per violino I
Concerto per violino II
Concerto per violino III
Concerto per violino IV
Concerto per violino IX
Concerto per violino V
Concerto per violino VI
Concerto per violino VII
Concerto per violino VIII
Concerto per violino X

So the 9 is between 4 and 5...

[simoncn]

I don't think it would be easy to do this without causing problems when the letters I, V, X, L, C, D and M appear in normal text.

Instead, you can use Title.sortValue to specify the correct sort order in this case.