Ambient Sound

@Chris Hester After my testing, only by connecting the metal box to the motor can it produce sound. The following card can prove this point.

Spoiler: Card

Simple amazing!

I love music, but would suggest this one without music.

@Pratik Bhalerao Thanks for the feedback! You're right,the music is a bit noisy. Glad you still enjoyed it!

Hello. I did not leave a comment on your first level, because for me it is more of a demo level.
Therefore, since I am communicating with you for the first time, I want to say - welcome to the forum!!
You are a very interesting new member (although it seems to me that you are already quite experienced!). Because your levels are extraordinary and original.
The timing at this level is quite strict and for professionals.
Level 5. Thank you, and inspiration to you in the future!
I almost always play with sound!
Regarding the sound or noise - I didn't understand anything at first. Because during the game I didn't notice any extraneous sounds. But then looking at your additional cards - I realized that this is a really interesting discovery. At the main level, as I understand it, it's just beautiful (non-standard) music I really like this music and I don't understand who it can irritate? Excellent music. Only on card 2 there is an unpleasant noise. 1 and 2 are quite pleasant sounds. I don't understand how you do them. I don't have time to deal with non-standard blocks, so I'm just happy for you and your discovery.

@Denis Nazin Thanks for the warm welcome and kind words! Glad you enjoyed the music. The sounds are from experimenting with block combos, happy you noticed！Inspired by your support!