OH YES ! Thanks ! Well, actually the list I wanted to write was just a simple big page with a big table with all of the songs in alphabetical order, year and where to find them. A sort of catalogue you can print at home to cross out the songs you have and you find.
But it is true that the Utadanet discography is BY FAR the most complete list you can find ! I would not have heard about "No woman no cry" for example without it (but finding it was harder lol) ^_^
I have to take a look to see if some new were released but I guess I have all of Hikki's piano (very great), jazz (YEEES!) and music box albums (no comment...). So if you ever need the titles, but you maybe already have them ?