Automatic composition techniques are important in sense of upgrading musical applications for amateur musicians such as composition support systems. In this paper, we present an algorithm that can automatically generate songs from Japanese lyrics. The algorithm is designed by considering composition as an optimal-solution search problem under constraints given by the prosody of the lyrics. To verify the algorithm, we launched Orpheus which composes with the visitor's lyrics on the web-site, and 87,000 songs were produced within the 2 years of operation. Evaluation results on the generated songs are also reported, indicating that Orpheus can help users to compose their own original Japanese songs.
Bibliographic reference. Fukayama, Satoru / Nakatsuma, Kei / Sako, Shinji / Nishimoto, Takuya / Ono, Nobutaka / Sagayama, Shigeki (2010): "Automatic song composition from Japanese lyrics with singing voice synthesizer", In InterSinging-2010, 5-8.