Ready for change?

Edit a video card

for the subject:

Complex Waves

Describe the composition of complex sounds.

What should we call this card?

What is the site and ID of the video?

`https://youtube.com/watch?v=`
`https://vimeo.com/`

We recommend videos no longer than five minutes.

Advice: We recommend joining before you edit content,
so you can easily continue later!