John Williams Talks Potter Score

In London, Williams met with film director Christopher Columbus to look at the rough cut for ''Harry Potter'' and ''spot'' the film - that is, decide which parts of the movie need music. Williams will compose the score at home in Los Angeles and at Tanglewood this summer, before returning to London in August to record the music.

Over tea last week, the genial composer talked about the ''Harry Potter'' project and the ''Evening at Pops'' television program that he taped earlier this week.

''I've actually seen a little of the film already,'' Williams said. ''A couple of months ago I saw the first trailer, which is 110 seconds long, and I wrote and recorded some music for it.''