Well, there's nothin' to it. It's just like arithmetic. All you gotta do is just count lines and spaces. That tells you where the notes go. It ain't hard.

11 seconds sound clip from the The Cowboys (1972) movie soundboard.

You can hear this line at 01:04:02 in the Blu-ray version of the movie.

Quote context

[...]

- I picked this up on the trail. I know it ain't gold, it's just fool's gold, but it's kinda pretty.

- You callin' me a fool?

- No, no, I didn't mean it like that.

- I got no use for it.

- You write that yourself?

- No, no. It's printed on paper. I've been tryin' to learn it.

- Well, there's nothin' to it. It's just like arithmetic. All you gotta do is just count lines and spaces. That tells you where the notes go. It ain't hard.

- Looks like fly specks to me.

- Some guy named Vivaldi wrote it. It's kinda pretty.

- If that's that ol' Tennessee sour mash, put a little in there. Good for my rheumatism.

- That comes with old age.

- Yeah, miserable old age. I hate it.

- I'm not far behind you and I don't like it, either.

[...]