Hatsune Miku (VOCALOID2) is used to sing mainly Showa period songs and anime songs.
Other works may be found by searching for "Costume P" + song title, singer name, etc.
If you search for the lyrics at the beginning of singing or the chorus part + "Costume P", it may appear at the bottom of the search results.
Feel free to use my work as a material for making videos.
(However, please understand that my work itself may use unauthorized materials and use it at your own risk)