Here's a short story:

(CNN) -- Music manager Allen Klein, whose clients included the Rolling Stones and the Beatles, died Saturday after a lengthy battle with Alzheimer's disease, his publicist said. Klein was 77. 

The son of Jewish immigrants from Hungary, Klein founded his firm Allen Klein & Co. in the late 1950s before the label evolved into ABKCO Music & Records in New York. The independent label holds the copyrights to music by the Rolling Stones, Sam Cooke, the Animals, the Kinks, Chubby Checker, Bobby Womack and hundreds of others. 

Klein represented dozens of artists, including Sam Cooke, the Animals, Bobby Darin and Herman's Hermits. He changed the music industry when he represented Sam Cooke in negotiations with RCA, winning the artist control of his own master recordings. 

Known for a tenacious and often blunt style in negotiations, Klein's greatest coups were inking contracts with the Rolling Stones and the Beatles, though both relationships ended in legal battles. 

ABKCO built up a catalog of copyrights to more than 2,000 songs, including much of the Stones' 1960s catalog. Klein retained ownership of those titles even after splitting with the Stones. In 1969, John Lennon persuaded the other Beatles that Klein should take over the group's business affairs, but Paul McCartney resisted the move and some music historians say the appointment hastened the Beatles' split. 

Lennon later fell out with Klein, who was thought to be the target of the former Beatle's 1974 song "Steel and Glass." 

Defending his tough style, Klein told Playboy magazine in 1971: "The music business is about 99 percent no-talent losers who can't stand a winner in their midst."  (End of story)

Provide your best guess for the following question. Give ONLY the guess, no other words or explanation.

For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>

Here are a few examples of questions and answers:

Question: What was Allen Klein's occupation?
Guess: music manager

Question: Did he have famous clients?
Guess: yes

Question: Who?
Guess: The Rolling Stones and The Beatles

Question: what was the name of his company?
Guess: Allen Klein & CO

Question: did it change names?
Guess: yes

Question: What did it become?
Guess: ABKCO Music & Records

Question: Where was it based?
Guess: New York

Question: Who did he help win control of their work?
Guess: Sam Cooke

Question: Did his work relationship with the Rolling Stones and the Beatles stay friendly?
Guess: no

Question: what happened to them?
Guess: they ended in legal battles.

Question: How many tunes did the company hold the rights to?
Guess: over 2000

Question: Did Paul McCartney want to partner with him?
Guess: no

Question: Did any of the other Beatles?
Guess: yes

Question: Who convinced them to join with him?
Guess: John Lennon

Question: What percentage of the music field did he consider to be losers?
Guess: about 99 percent

Question: Was he usually tactful?
Guess: no

Now answer the following question in the same format.

Question: what other musicians did he represent?

Sam Cooke, the Animals, Bobby Darin and Herman's Hermits.