Crypton Future Media, a music software company based in Sapporo, Japan, developed Hatsune Miku (HM), a singing voice synthesizer software program (Vocaloid). Users entered lyrics and melodies to create songs, which were then sung by Hatsune Miku, a 16-year-old female virtual singer featured on the software packaging.<br><br>Initially targeting professionals, HM unexpectedly caught on among amateurs who produced music, lyrics, artwork and .....more