Sue Weil may well be the missing link in the generation gap. This despite the fact she describes herself as a "middle-aged, middle-class, suburban housewife."

She is 35, but looks like her 15-year-old daughter's sister. She loves to bake bread when it doesn't interfere with her booking of rock groups.

Her title is coordinator of performing arts for Walker Art Center, which sounds like ballet, string quartets and poetry readings.

It's not that such things are ignored, but Mrs. Weil is intent that the young ones get what they want. And get it good.

SUE WEIL The missing link Since she took the job six months ago, she has brought in the likes of Pete Seeger, Led Zeppelin and Blood, Sweat & Tears.

For the near future, she has booked the likes of albino blues singer Johnny Winter, the Holy Modal Rounders and The Mothers of Invention.

The rock concerts are held in the Guthrie Theater, where I found her backstage Sunday night. She was flitting about administering to The Who, a four-man, far-out British rock group.

Without much promotion, two performances of this frenzied four were sold out.

"How'd you get started as a rock promoter" I asked. "I have a very patient husband," she said. That's Fred Weil Jr., president of Republic Acceptance Corp.

"Do you really dig rock?" "I started loving jazz," she said. "And I've grown into rock. It's the most exciting thing happening in music today."

"We may be the only ones over 30 here," I said. "Yeah, that's too bad," she said. "It isn't just for the kids, but it's just the kids who love it. There are not many contemporary things that older people will come out for."

We wandered into the theater proper where The Who were banging out something called "Heaven Or Hell." The lead guitarist, Peter Townshend, 24, was slipping about. The hair of drummer Keith Moon was flopping frantically in time with the music, and vocalist Roger Daltrey was throwing the mike out, then jerking it back by its cord.

The noise was incredible, and most of the audience sat quietly with serious expressions.

"You like this?" I asked. "Yes," she said, "sometimes your head rings for two days, but it's great." She looked at the audience, mostly young.

"These kids, they're beautiful," she said. "And their taste is really better than you think. They know their music. They know good folk, good jazz, good rock. They're very discerning."

The Who are credited with writing the first rock opera, a work called 'Tommy.' In 11 days, a million dollars worth of the album was sold, second only to the record of the Beatles' "Sergeant Pepper's…"

Townshend explains the weird story of the opera:

"It's about a boy whose father goes to war. His mother takes a lover. The father comes home and shoots the lover, while the boy looks on. Then the parents beat up the boy, and tell him that he didn't see it. The boy goes into a strange vibration land, and becomes a pinball champion."

I asked her if they were putting us on. "No," she said. "They're very serious about it. It's not something you should worry about literally."

There was no doubt Mrs. Weil with the black hair and big brown eyes was sincere. Whatever I lacked in understanding it all, she didn't.

Somehow she has managed to be in both worlds, and not to abandon either.

"I still like all those little domestic things, like cooking," she said.

When Pete Seeger came, she met him at the airport and drove him to his hotel. Then she went home and baked him some bread.

"What do you do for Pete Seeger?" she said. "He makes you bake bread."