Once again I've confirmed my endless love for music. This drama was a true proof to that. I was blown away by the brilliance of this drama from the very first moment I saw the first episode. The great combination of amazing acting especially from Yoo Ah In, portrayal of their passion, and the most important the fantastic choice of classical music got me hooked right away. Just to be clear about something, I'm not a fan of love affairs, actually I don't like them at all and usually do not watch dramas with concept like that but this one I chose because of the music theme and the main actor. And I'm glad I did that 'cause I fell in love with this drama so deeply with no cure for healing. For the record this drama and story aren't affair at all as all of us think what affair actually is and you could see that from the very start and the relationship between the married couple, they were more like business partners. Yoo Ah In and Kim Hee Ae have done the job brilliant in portraying the two people who met and simply, slowly fell in love through the piano playing, music sheets, Mozart, Liszt, Tchaikovsky, and many other classical geniuses. I was hypnotized and mesmerized with their conversations, with their playing, with their passionate chemistry, I can't remember when I've reacted like this to some couple and chemistry in drama, since MARS I haven't felt like this. This is not some average bubbly romance drama; it's dark, complex, passionate, bittersweet, and sometimes even torturous. It's a true emotional, mature and adult romance drama where we'll cheer as hard as we can for love to win against all odds. It’s a story to show how love can change one for the best or the worst. I loved very much how they concentrate simply on development of the main characters, their constant battle inside them, their pain, their hope and most of all their passion. It had been a very long time that I had felt such complex emotions with such intensity. It was almost like I was one of them. Of course there are boring parts, for example the part about business and all those irritating female characters who were so evil, bad and gossiping around, I really hate that. But except that everything else was a masterpiece for real. Yoo Ah In as a young piano prodigy was magnificent, he once again proved to me why he's one of my favourite actors in the whole world. When he’s onscreen with Kim, they make beautiful music together, both literally and figuratively. The love story generates plenty of heat, and feels genuine and quite moving. As long as the two leads are playing duets together or sharing bowls of noodles, everything else was in the shadow, only them and their fantastic chemistry. Unlike in the most of average dramas, the music actually added meaning and depth to the drama. They played so many beautiful pieces from so many great composers and anyone who has any appreciation for classical music is going to enjoy this drama enormously. This drama is a bit slow, but it didn't bother me at all. I loved that I could see and feel their every gaze, touch, and emotion. I was able to synchronize my emotions with them, to understand and feel how they fell for one another. For me this drama has a deep meaning and definitely left me with so many great and honest emotions. If you're like me a person who loves a true pure romance dramas with adult and mature thinking with endless love for music in your daily life, then this drama is for you.