If you already have a sound or video file you'd like to practice
with, copy it to your XHTMLclass folder. Or create a subfolder
in your XHTMLclass folder, and copy the file to that subfolder.
Then create a new page from your XHTML Template file, and try
linking or embedding to your sound or video file.
If you don't have a sound or video file, consider downloading a
MIDI file from the MIDI site referenced in this lesson's
Supplementary Material, or download a video file from the
HubbleSite referenced in the Supplementary Material. Then link
to, or embed, that sound or video file. You should be able to
just copy and paste the appropriate tags from the lesson. Then
change the relative path (or paths) in that tag to correctly
point to your sound or video file.