Drama with classical music OST

Here's my recommendation request. 

I've just finished the Kdrama Secret Love Affair (2014), that I really enjoyed watching (even if it was a bit painful sometimes). I think I liked the OST the most : mostly classical pieces. I was wondering if there were any other drama with a similar OST ? 

Nodame Cantabile - I strongly recommend this one.

+ 1 Beethoven Virus.  It's excellent totally underrated.  Actually in my rating scheme it's perfectly rated, but judged against the nonsense ratings on here it's highly undrerrated