Philip Glass (b. 1937) may not quite be a household name in America, but he's surely as well-known as any living classical composer, and the repetitive minimalism that is the hallmark of his music has influenced everything from rock music to TV commercials. Still, after 5 decades of composing, it took a commission from Chicago-based Third Coast Percussion for Glass to write his first concerto for percussion ensemble, Perpetulum—"What took them so long to ask me?" Glass has said about the commission. TCP has just released the premiere recording of the 21:23 minute concerto on their new 2-CD set, Perpetulum (OM 0132), from Glass's own label, Orange Mountain Music. The recording, which was engineered in 24/96, is also available as a download with those specifications.

"I have an organic approach toward music but I've always been interested in electronics," says Jean-Michel Jarre, whose luxurious electronic pop conquered the world in 1976 with his hit album Oxygène. Even today, Oxygène's bubbling tones and saturated textures provide a blissful sonic experience. "I love jazz because of its organic approach to sound, and I've been influenced by that. I always thought that jazz and electronic music have much more in common than we think."

I will never forget.

In 1988 I had my first experience with Western Electric 300B tubes. It took place on a quiet, streetlights-and-snow night at my friend Ryoichi's apartment on Riverside Drive, in Manhattan.

I had never heard of the late Japanese amplifier designer Ken Shindo, of Shindo Laboratory. But that evening, Ryo's audio system was all Shindo: a hammertone gray Shindo-restored, grease-bearing Garrard 301 turntable sitting on a Shindo plinth of glossy wood, with a Shindo-modified Ortofon tonearm and SPU cartridge, a Shindo moving-coil step-up transformer, and a Shindo preamplifier with a moving-magnet phono stage.

In our February 2019 issue, when I reviewed a new integrated amplifier from Colorado-based Ayre Acoustics, I concluded that "the EX-8 Integrated Hub is a high-end contender at a competitive price" (footnote 1). In that review I promised a Follow-Up in which I would compare the EX-8 with Cambridge Audio's Edge A integrated amplifier, which Ken Micallef had positively reviewed in our January 2019 issue (footnote 2). While I'd enjoyed my time with the EX-8, I'd found its balance rather on the light side, and that it projected voices somewhat forward on the soundstage.

In the November 2018 issue of Stereophile, Jim Austin reviewed PS Audio's DirectStream Power Plant P20 AC regenerator ($9999). PS Audio had sent me the less expensive DirectStream Power Plant 12 ($4999), hence this review.

Why use an AC regenerator rather than plugging components straight into the wall?