I agree, this is Final Fantasy Ouendan. If you liked that game, or if you like Final Fantasy, you'll love this.
I too am surprised at how few FF's I've actually played (FF4, 5, 6, 7, 8, 9). It really makes me want to play FF12 after hearing Sakimoto's music.
The Sakimoto tracks are some of the most intense. The game actually gets pretty intense on higher difficulties. And I still haven't quite figured out all the character abilities.
My current party is Cloud, Terra, Cecil, and Vaan. I need to add a thief so I can steal items from bosses!