This has led him to conclude that the structures of the brain used for musical memory "might be the superior temporal gyrus or the frontal lobes".
That has led him into some high-profile clashes at Ofgem.
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More importantly, the countless hours of transcription has led him to conclude that the Bible is more sublime than just a bunch of stories from thousands of years ago.
The president-elect said Sunday that the suffering on both sides of Gaza's borders has led him to ramp up his commitment to working for a peace deal in the Middle East.
He went to the House of Representatives in 1995 but retired in 2001 after sticking to self-imposed term limits. (Mr Carson replaced him.) His small-government militancy has led him at various times to talk of closing down the Department for Housing and Urban Development, and of privatising Social Security.
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He is also well known for his hands-on approach to movie-making, performing many of his own stunts, something which has led to him breaking most of the bones in his body over the years.
Nadal's astonishing form on grass has led many to tip him to end Federer's domination at Wimbledon.
Clinton's high profile has led critics to accuse him of upstaging his wife, Secretary of State Hillary Clinton, especially when he was making headlines while campaigning for her unsuccessful 2008 presidential bid.
But it is the geeky scientist in him that has led to the intensive and constant experimentation through which he builds his record and rebuilds his live shows each night.
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The cocky, independent streak that served him so well has led to bad decisions, such as hiring cheaper but inexperienced workers.
And Heggs says a lack of communication, and money, from the club's board has led to the frustration felt by him and the players.
At his peak Younis was unplayable but his ferocious action has led to back problems which caused him to miss the 1992 World Cup and almost all the 1995 season.
His campaigning work - which he fits in alongside a busy rock career that sees his band release their 14th album in November - has led to calls from several quarters for him to be considered for a Nobel Prize for humanitarianism.
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In Wisconsin, Walker, who survived a union-led campaign to recall him from office, has proposed changes to the state's Medicaid plan in the aftermath of Obama's health care law.
But an evidently frustrated electorate has enthusiastically endorsed a new party led by Susilo Bambang Yudhoyono, giving him a much better shot at the top job.
Red Bull's response in the immediate aftermath of the accident has strengthened a widespread belief that the team favour Vettel and has led to conspiracy theories that they were trying to engineer a win for him.
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The cyclist known as Wiggo, whose long sideburns have led the British public to dub him a "Mod, " has risen rapidly to become a national hero.
His low-key, piano-led music has won numerous fans, including Lily Allen, who originally signed him to her record label, In The Name Of, earlier this year.
Kallis has been plagued by elbow trouble for the past few months, which led to him being left out of the first Test against Australia and Tuesday's one-day defeat by Sri Lanka.
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Saddam Hussein has appeared on television several times since the start of the US-led campaign to topple him, but there is debate as to whether the broadcasts were live or pre-recorded.
Rawn cooks without recipes, which has more often led to great meals than not according to his friends, but also leaves him at a loss to explain how he created them in the first place.
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Mr Davis, too, has often been underestimated: his lack of technology credentials and regular-guy image have led rivals to dismiss him as a hard-selling dilettante who just got lucky.
He has decided to start from scratch in a city that inspired his love of hip hop in the 1980s and led him to introduce rapping to the land of opera.
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