Good mechanics but too difficult for me. Never managed to reach 10 seconds on any level. It doesn't seem like it would even be possible on some of these levels. In particular, for a game about memorizing paths, the bouncing balls aren't consistent, which made that level pretty weak. Wall jumping off of the spike walls was also very difficult to pull off. It felt like they should have had a longer delay before popping out. If the game was balanced so you could live longer I think the platforming/dodging highscore thing would have more longevity and be more fun. I enjoyed playing it a bit, but dying after a few seconds gets dull pretty quick.
I also couldn't hear the music you said was playing. My browser seemed to know this tab was trying to play music, but I couldn't get the audio to work. Might be my end, but you should double check how the audio is being played.
My times were
1: 7.97
2: 7.27
3: 6.03
4: 4.35
5: 6.95
6: 9.42
7: 3.50