Q:

Is there a way to use a sound channel on a movieclip?

The only way i can describe this is showing the code I have already then trying to explain what i want to do..
Basically, I am creating a soundboard game, where at the bottom of the screen I will have a bar which is a movieclip, and I will be dragging other movieclips onto it and then clicking pay, and using an array and .push they will play in order. I am trying to put the sounds onto the movieclips using code. So far, I have this:
var snd1:Sound = newSound();
snd.load(newURLRequest("naturefrog.wav"));

var channel:SoundChannel;
snd.addEventListener

I am now stuck with what I would put for the listener to listen for.

A:

See this answer for knowing when sounds have finished loading, if the sound is external:
  Loading a sound from an external source
Now once you're ready to play the sound and listen for when it completes, that's answered here:
  demonstrates setting up listeners for sound_complete, as well as looping

