Admittedly, haven't listened to them much, but I was a bit disappointed when I didn't find more swing in their other songs. Maybe I listened to the wrong ones? 
Nah, you didn't
The thing is that they incorporate many different elements, so they don't have many songs that sound-alike. There is that one thing (which is unexplainable
) that creates that DSO atmosphere, which makes you wanna listen to them, no matter what new elements they decided to use this time. (yes, I'm a big fan)
Listen to A Tapdancer's Dilema, think you could like it
NTSMS has gone Calella 