The following is the description provided by the original uploader
(rari_teh) to the [Internet Archive][1].

> ?????? ???????(Puzzle Game Do-Re-Mi Otoshi) is a Columns-like
> falling blocks puzzle game developed by SME Intermedia and published
> by Sony Music Entertainment under its super-budget Shock Price 500
> Game Series label. Predictably, it was only ever released in Japan.
>
> Much like in Columns, its gameplay consists of matching three
> identical blocks in a straight line as much as you can. There are
> seven different blocks, one for each music note, named after the
> fixed Do solf�ge as it is usual in Japan. Differently from Columns,
> however, the blocks fall in pairs, and the player can rotate the
> falling group 90� at a time. The groups aren?t glued together,
> meaning that no blank spaces can ever be formed by dropping blocks
> horizontally over a ledge. Every time a line is made, the
> corresponding note is played and it is stored on a 16-block buffer
> off-board. When the buffer is filled, the cleared notes are played
> again in sequence, the board is cleared and the game advances to the
> next level, dropping blocks faster. In the help files, the player is
> encouraged to up the challenge by trying to make the game play a
> small tune, clearing lines of blocks in a deliberate order. There
> isn?t much more to the game than that, but there?s only so much one
> can expect from a �500 game. It was developed using Macromedia
> Shockwave Director, which probably made viable its release for both
> Windows and Mac OS on the same CD-ROM.

Compatibility
Architecture: 68k x86 (Windows)

68k only (even though the rear cover mentions PowerPC)
KanjiTalk 7.1
640 x 480 display
256 colours

Would not run for me, presumably because I do not have KanjiTalk
installed.

  [1]: https://archive.org/details/doremi-otoshi