Answer:
I used to like listening to music, but my sister ruined all that when she broke my iPod.
Step-by-step explanation:
The two phrases broken up by a comma can be two separate sentences:
- I used to like listening to music
- My sister ruined listening to music for me because she broke my iPod.
But due to the comma and the connector being "but," you're still able to say the two sentences in one by removing some extra words and connecting them to flow better.