I have done alot of this since i got my Mac. I had the very same issue, and the one where a bands name starts with 'The'.
I found that it is very difficult to order the artists name alphabetical because of the same sort of thing. iTunes has its own way of indexing the artists and albums. Often it is quite involved to put them into a particular kind of order. I think some of this is caused by Genius; it may know your artists name in a different way than you have it entered. I found i had hundreds of bands in T, because of their titles, The, Enid, The Rolling Stones eg. I simply went to the artist in iTunes and clicked on the drop down menu for artist info and removed the word "The"; i then simply listed the band as, say 'Rolling Stones', its now listed under R; similarly, The Enid, now listed in MY iTunes as simply "Enid".
Bands like the rolling stones can be listed as 'Rolling Stones' Not having "the" prefix doesnt change who they are; we know them as the rolling stones, but they can be listed in R instead of having hundreds of "the" bands.
All of my bands are saved to an external HDD; this is my back-up library. In there, i have also changed things, again i removed "the" for many artists; i also paid attention to the personal artists name such as 'Huey Lewis and the news'; i listed it it as you see it but its in L (for Lewis)!
To do this i went into iTunes and looked for the artist; seeing things like The Alan Parsons Project, and further down as Parsons Alan Project, further UP as Alan Parsons; can you see how confusing it can be just for one artist?
I went into The Alan Parsons Project; in the top line where the band name is; i clicked on the circle with three dots in it (in line and horizontal), and in the drop down menu i clicked on Artist Info; it will ask if you want to edit the info for multiple objects, you click (Edit Details).
A box will appear on screen with the artists name, how many albums are in there etc. Now, I was looking at The Alan Parsons Project; so i click the artists name in the first line in the text boxes, and simply removed "The". Click on OK and the bands name will now become Alan Parsons Project.
I also mentioned the other way that the same band is listed; i do the same, go to 'The Parsons Alan Project' and in the same way as above, i changed the title to "Alan Parsons Project", simply by removing 'the' and by moving 'Alan' to the front. This will not only change the title to Alan Parsons Project, but it will move ALL the albums in that folder to be moved to the rest of Alan Parsons Project. This will bring all their albums into one place. Be aware that this listing is case sensitive; even a misplaced ' " . or , can drastically change the title, so just keep it simple. If you have to, you can remove the full stop at the end of that line; but then make sure that ALL the others do not have the full stop!
Its all to do with the way the info is displayed from the back up and how iTunes wants to display them; but it IS possible to control it.
I hope this helps?