This is the 581st most frequent Swedish word.
däremot
"On the other hand" or "however."
The word 'däremot' is used here to introduce a contrast between the liking of coffee and the lack of fondness for tea.
Jag gillar kaffe, däremot är jag inte särskilt förtjust i te.
I like coffee; however, I'm not particularly fond of tea.
In this sentence, 'däremot' contrasts her musicality with her lack of playing an instrument.
Hon är väldigt musikalisk, däremot spelar hon inte något instrument.
She is very musical; however, she doesn't play any instrument.
Here, 'däremot' sets up a comparison showing the difference between the states of the two rooms.