1 That was awesome! One question, how do users of vocaloid program her voice? Do they just type in the lyrics for her to sing or syllable by syllable?

2 I'm a little fuzzy on it myself. From what I understand, the user specifies the pitch and lyrics (in Japanese), and the software takes care of the rest. The task is made significantly easier by the fact that Japanese words are composed of fairly formulaic syllables. さ is sa regardless (almost) of whatever comes before or after. In this case they tried to find the best fits from the Japanese syllabary to cover the original English lyrics.

3 Thanks. The wiki entry was not a lot of help. It did mention a German and an English Vocaloid character.   So presumably there are versions of the software that try to handle those languages as well.