Ok, so this may not be "overlooked" as much as "new," but I've been enjoying playing the Zelda-II-inspired adventure game Elliot Quest on my OUYA, and the soundtrack by Michael Chait is generally nice and tuneful. Whaddya know... an indie game with actual melodies! A few of the songs skirt awfully close to famous retro themes in a few places,* but I'm not complaining. I'm a particular fan of the second half of "Hero in the Land of Fire." The main Elliot Quest theme (used as a random battle theme) is also enjoyable. Take a listen to the whole soundtrack here.
* I count musical references to "Gerudo Valley" from Ocarina of Time, "Lost Woods" from Link to the Past, and "Level Select" from the original Star Fox. Any others?