I was thinking of Eternal Sonata but I couldn't think of the name at first and accidentally stumbled onto The last symphony. A fascinating read.
In a brilliant touch, the team integrated fitting symphonic musical elements; while the player can get information on every object they unearth in the house, they can get further clues about the interrelationships between those things and what story conclusions might be drawn by the musical parts that play when objects are placed side by side in the player's packing truck.
As the player builds a logical grouping of objects, a harmonious symphony swells. The music in the game is absolutely lovely, and perfectly compliments the soft, hand-drawn art.
"I worked with a really cool team of students," says Fernandez Vara, adding that using sound and music as a hint system challenges players -- who don't normally use listening skills when playing -- to look at problem solving in a new and refreshing way.
http://www.gamasutra.com/view/news/178188/Inside_The_Last_Symphonys_harmonious_narrative_experiment.php#.UJidGWfoyK8
I'll try it tomorrow.
http://gambit.mit.edu/loadgame/summer2012/thelastsymphony_play.php
