Twenty-five years after the premiere of John Adams' Violin Concerto, the music remains as vital, exhilarating, and strangely moving as the day it was birthed. An extremely demanding work, its three contrasting movements present a triathlon challenge of sorts to anyone who dares try to play them.

Here, she who rises to the challenge is violinist Leila Josefowicz. Provocatively pictured on the CD cover as a curious cross between an athlete in repose and Rodin's reflective thinker...

I'm sitting in a rented Nissan just off Highway 61—yes, that Highway 61—looking out at a Shell station through the bug-stained windshield and across a litter-strewn, not-yet-planted cotton field. It's late March, and I've just left Clarksdale, Mississippi, on my way to Memphis. Leaving Clarksdale made me thoughtful, so I've pulled over to jot down a few notes.

One of the benefits of being a reviewer is that, of the large number of products that pass through my listening room, occasionally there are those that I really would like to see take up more permanent residence. One of these was Wilson Audio Specialties' Alexia loudspeaker, which I reviewed in December 2013. "Its clarity, its uncolored, full-range balance, its flexibility in setup and optimization, and most of all its sheer musicality, are, if not unrivaled, rare," I wrote, and concluded: "If I were to retire tomorrow, the Wilson Alexia would be the speaker I would buy to provide the musical accompaniment to that retirement." Nothing I subsequently heard disabused me of that dream, though a couple of other speakers, in particular Vivid Audio's Giya G3 and KEF's Blade Two, joined the Alexia on my bucket list.

It's not surprising that many people, like me, love nice cameras and good stereo gear. In my worse moments, I attribute this to mere consumerism: We love expensive stuff and the thrill of buying something new, whether for reproducing music or creating visual images. In my better moments, it's clear to me that there's more than that to this common taste for audio and photography, and more to the hobby of so-called perfectionist audio.