Howard Buffett, designated the next chairman of Berkshire Hathaway, was touted by his brother as a guarantor of the firm's values who shouldn't be expected to match the investing record of their father, Warren Buffett. 'That's like asking Sean Lennon if he could go write Beatles songs' like his father, John Lennon, said Peter Buffett, a musician and the youngest of the billionaire's three children. 'I don't think my brother would want to take on the level of intensity my dad brings to it. Who could?' Warren Buffett, 79, amassed the world's third-biggest personal fortune through four decades of stock picks and takeovers at Omaha, Neb.-based Berkshire. Most of that wealth, valued by Forbes at $47 billion, will go to charity after he dies. His children will be left with a legacy of ethics and independence that Peter Buffett, 51, says in a new book is worth more the cash. 'It is not about stuff, it's not about accumulation or the bling,' Peter Buffett, whose 'Life Is What You Make It' is published by Random House's Harmony Books, said Mondayin a telephone interview. 'It's about loving your life and doing something for the world around you and not just for your personal gain. Those are the values my parents had.' Warren Buffett's wealth soared as bets on Coca-Cola, Geico and MidAmerican Energy Holdings boosted Berkshire's stock 18-fold over the last two decades. Buffett, who owns a quarter of Berkshire and is its chairman and chief executive officer, makes a $100,000 salary and hasn't had a raise in more than a quarter century. Susan Buffett, Peter's mother, was a Berkshire director and a philanthropist until her death in 2004. In 'Life,' which goes on sale Tuesday, Peter Buffett decries the corruption, emptiness and bad parenting that often accompany great wealth. In contrast, he says that from his early 20s, he was forced by his father's design to live on a budget and find a career. His 'family inheritance' of about $90,000 in Berkshire shares, which he got at age 19, was no more than enough to quit Stanford University and get a start in music. 'It was understood that I should expect nothing more,' Peter Buffett said in the book. 'I used my nest egg to buy something infinitely more valuable than money: I used it to buy time.' Those Berkshire shares would be worth about $72 million today, he said. Peter Buffett moved to San Francisco and found work composing 10-second interludes for the startup MTV cable network. He lived frugally, driving a 'crummy old car,' according to the book. Warren Buffett encouraged his son's pursuit of music and likened it to his own passion for Berkshire, which he'd transformed from a failing textile maker into a $200 billion insurance, energy and consumer goods provider. 'You know, Pete, you and I really do the same thing,' Warren Buffett said, according to Peter's account. 'Music is your canvas. Berkshire's my canvas and I get to paint a little every day.' Warren Buffett hasn't announced plans to retire and in February completed the biggest takeover of his career, the $27 billion acquisition of railroad Burlington Northern Santa Fe Corp. Berkshire plans to split Buffett's executive duties between a CEO and an investment head when he is no longer able to lead the firm. Howard Buffett, 55, a director and a farmer, would be an effective chairman, his father said after the 2006 annual meeting. 'I would hope they will make Howard the non-executive chairman,' Buffett said at a press conference in Omaha. Preserving the values of Berkshire would be 'the big reason for him being there,' he said. Buffett's oldest child is named Susan. In 2006, Warren Buffett committed $1 billion to each of his children to give away in charitable donations. Peter Buffett wrote jingles for clients including CNN, Headline News and Atlanta-based Coca-Cola, which counts Berkshire as its biggest investor. He composed a two-minute piece for Kevin Costner's film 'Dances with Wolves' and the full score for '500 Nations,' the eight-hour CBS miniseries, according to Buffett's Web site. 