- You can't feed an organ.
- No, but you can play one.
- I'll play it! I'll play it! I'll play it! Doo bee doo bee doo...

10 seconds sound clip from Scooby-Doo, Where Are You! - A Night of Fright Is No Delight (S1E16).

You can hear this line at 00:12:23.893 in the Blu-ray version of the episode.

Quote context

[...]

- Come on, let's find out where it's coming from.

- Well, here's the organ.

- Yeah, but where's the kook that was playing it?

- Gone. But he left his music book behind.

- Hey, let me see that. There's some writing on the cover.

- Feed the organ and watch the floor.

- If anyone's going to get fed around here, it's going to be me.

- Me, too.

- You can't feed an organ.

- No, but you can play one.

- I'll play it! I'll play it! I'll play it! Doo bee doo bee doo...

- Oh, brother.

- Let's watch the floor and see what happens.

- I think we'd better, like, watch the walls.

- Why?

- Because they're closing in on us!

- The door's locked!

- Quick, Scooby, do something.

- Right.

[...]