I'm a bit disappointed because the show started so strong, I created a lot of expectations for it to then turn into a completely different thing.
It had potential in the beginning since I think the whole concept of music - specifically jazz - could be very interesting to incorporate in the drama, since it is something that I personally enjoy as well. However, as the plot advanced it became confusing and I started to dislike characters that I could not go back to like due to their actions. Also conflicts were resolved too easily, which didn't make much sense to me.
Nevertheless, I liked the cast - which was completely new for me - and the music they played throughout the drama was nice and soothing.