Ongaku Tsukuru: Kanadeeru

Ongaku Tsukuru is a music composing game for the Super Famicom that puts Mario Paint to shame.

Leftover data
For whatever reason, the data between offsets and  is identical to that of this public domain demo from 1993, including the cartridge header and title:

DEMO #3 Coded By -DAX-

It's likely that the game had been burned onto an EEPROM which had originally been used to watch the demo.

Copyright text
This text appears near the end of the ROM, at offset (line breaks added for readability):

(C) 1994-1995      S.Isoda       (MAP21/31) for      ASCII LOGIN SOFT Dec 1 1995                   OT/21
 * ApuDrv v2.1 * V2.1 beta 1     Dec 26 1995

"S.Isoda" refers to Shigeharu Isoda, who did sound driver programming on several games developed by Success.