"There's nothing stuffy about classical music," is what concert violinist Joshua Bell wants to show the younger generation. Since his days as a child prodigy, Bell, now 26, has been touring the world; this month he takes time off to record his 11th album, with the Cleveland Orchestra. A golf and tennis lover, Bell knows there's nothing stuffy about classical dressing: here he's fresh and comfortable in a Brooks Brothers V-neck tennis sweater topping a broad-cloth cotton shirt and cream linen pants, both by Paul Stuart.