User blog comment:Tsumou/Creating VOCALOID Music. Who is best to use?/@comment-5051846-20140811090016

For ballads, I'd reccomend Kokone and Galaco (Internet.co). Kokone also has the advantage of a very large range, including falsetto. IA may also be good, but I don't know how the new bank, IA ROCKS, fairs with this genre.