And tension, too, gives life to the genre's home – Nashville, Tennessee – and one of its most enduring subjects, whiskey.
Food, it turns out, is one of art's most enduring subjects, first appearing with our distant ancestors, who pictured scenes of the hunt on cave walls.
But it is a vision shaped as much in the darkroom as on the back trails of Yosemite, which gave him his most enduring subject.
Picasso Portraits, by contrast, is all about the infinite ways in which the greatest artist of the 20th century tackled his most enduring subject, the human figure.
It was on his grandparents' farm that he developed a deep love for animals, who were among his first, and most enduring, photographic subjects.
The Literary Review's bad sex awards are upon us once more – a "warm, wet" season of soul-searching on that most enduring of subjects: why on earth does so much good fiction feature so much bad sex writing?
But by the time the book reaches the Age of Wonder's concluding event, Charles Darwin's five-year voyage on the Beagle beginning in 1831, it has raised both the antecedents and ramifications of today's most enduring scientific debates, on subjects from global warming to extraterrestrial life to intelligent design.
Among the subjects of most enduring fascination for students of political image-making are the principals in the campaign that, for many people, started it all, Kennedy and Nixon themselves.
While discerning cinemagoers may understand the dramatic license taken by many directors, the fact that biopics are often the most enduring and popular representations of their subjects' lives means that their makers take on a huge responsibility - one too often disregarded.
Mr Ellis also fails to explore adequately the origin of Washington's most enduring belief that the military should be subject to civilian control.
The authors have come up with three variable types they feel should be the subject of study in terms of relationships; the most enduring being three personality traits, that is, neuroticism (inversed emotional stability), a 'slow to change' state of social inhibition and a 'sensitive to change' state of depression.
