I don't know the answer to this, but was just watching this episode on DAVE and heard it... I immediately recognised it from the film THE MATRIX (or it could have been from the trailer for it?) Worth checking out....
alphabet road with chinese bellflower's sweet smell
i was looking for it too and i found it. Its called vedi maria, from Emma shapplin
Elbow- Grounds for divorce
it not take on you its called TAKE ON ME by A-HA the episode is called "Breaking Out is Hard to Do" Season 4 Episode 9 =)
Music lessons
The episode was called "The Music". I remember watching it when it first aired and it was sad. :(
The only song i know of is "Stuck to You" by Nikka Costa.
Downton Abbey music is original music, according to IMDb.
The music at the end of the Doctor Who episode "Turn Left" is called All the strange, strange creatures.Links provided below for you to listen to.
Scott Brown - Commence
Closing song on Hung (ep. 6) is "Change Is" by Ryan Bingham.
I believe that is called "incidental music."