It's good to see all the hard work that went into remastering this, but the new background score was way too loud at times, which made it near on impossible to hear the dialogue. 

What is the music on the show during the end of the Largs house segment?

All music featured during each episode s listed on that episodes page on the BBC site. I've no idea which bit of music they played during the segment you mention, but if you look here https://www.bbc.co.uk/programmes/m001j6vl you will see them all listed and at what runtime of the episode it was.

Really enjoyed this. I look forward to a new season...

Thanks for all your hard work each week in compiling these lists. I really appreciate & I look forward to next season, whenever that eventually starts....