Isn't the music different in the Japanese version? The game apparently hasn't been dumped, according to Sega Retro.
http://segaretro.org/Undumped_and_Incor ... mped_Games
Also I thought it may be worth mentioning that a lot of those Sega Game Library titles haven't been dumped for .vgm, if anyone is interested.
If you are looking for a cheap copy of Marble Madness (J, Tengen), GameofJapan has one for $35: http://www.gameofjapan.com/product_info ... ts_id=6212