マーブルラン アドオン - ミュージカルステップトラック

My kids figured out the pentatonic scale on their own before I even explained it, which was a fun surprise. The blocks click onto our existing set without any wobble, and the notes actually sound clean instead of tinny.

It's really satisfying hearing the marbles hit each block in the correct order—the pentatonic scale comes out clear and sweet. My son spent an hour rearranging to get the tune just right, which is a great problem-solving exercise too.

My kid figured out the pentatonic scale in about ten minutes and now builds little tunes instead of just racing marbles. The sound blocks are surprisingly clear for being plastic.