Each era of rock music has had its own craftily marketed phenomenon – it was the "live album" in the '70s, "unplugged" recordings in the '90s, and since the late '80s through the present day, the "tribute album." But the early 21st century saw another addition – veteran bands revisiting classic albums and performing them in their entirety. Jethro Tull's most enduring release is largely agreed to be 1971's classic Aqualung, and in late 2004 Ian Anderson, Martin Barre, and their latest Tull mates dusted off the album once more in front of a small audience for XM Radio's Then Again Live series.

As the Beatles' Sgt. Pepper's Lonely Hearts Club Band (1967) had done a year earlier, Super Session (1968) initially ushered in several new phases in rock & roll's concurrent transformation. In the space of months, the soundscape of rock shifted radically from short, danceable pop songs to comparatively longer works with more attention to technical and musical subtleties. Enter the unlikely all-star triumvirate of Al Kooper (piano/organ/ondioline/vocals/guitars), Mike Bloomfield (guitar), and Stephen Stills (guitar) – all of whom were concurrently "on hiatus" from their most recent engagements. Kooper had just split after masterminding the groundbreaking Child Is Father to the Man (1968) version of Blood, Sweat & Tears. Bloomfield was fresh from a stint with the likewise brass-driven Electric Flag, while Stills was late of Buffalo Springfield and still a few weeks away from a full-time commitment to David Crosby and Graham Nash. Although the trio never actually performed together, the long-player was notable for idiosyncratically featuring one side led by the team of Kooper/Bloomfield and the other by Kooper/Stills.

With about seven years of downtime on the recording front, Isaac Hayes burst to life again in 1995 with not one but two albums, released simultaneously with cover art that merges together when placed side by side. One was a collection of old demos and new instrumental tracks (Raw and Refined), but the other - the disc at hand - was a brand-new package hearkening back to Hayes' old extravagant ways. In a major attempt to restart his commercial engines, Hayes goes so far as to record in his original headquarters, Memphis, gathering around him many old cronies - most notably his old writing partner from the Sam & Dave days, David Porter, and guitarists Michael Toles and Skip Pitts from the Stax period. Once again, Hayes attempts to transform well-known pop hits into wide-screen spectaculars, and he revisits tunes and ideas from his heyday…

It wasn't surprising that the Buggles' second release, Adventures in Modern Recording, didn't meet the expectations that 1980's internationally successful The Age of Plastic set. Both Horn and Downes had been working on several outside projects, including Yes' 1980 release Drama, which severely limited their time, and for the most part, Adventures was a Trevor Horn solo project; Geoff Downes only appears on three tracks. However, many of the criticisms leveled against this outing were unfounded and there is still much to like; several songs, such as the infectious title track, equal The Age of Plastic. Both "Adventures in Modern Recording" and "Inner City," with its lush arrangement and engrossing melody, show off Horn's remarkable production savvy. Horn and Downes collaborations like the sultry "Vermillion Sands" and "I Am a Camera" – a melancholy, stripped-down version of "Into the Lens," which appeared on Drama – are top-notch.

Ten Summoner's Tales is the fourth solo studio album by the English rock musician Sting. The title is a combined pun of his family name, Sumner, and a character in Geoffrey Chaucer's The Canterbury Tales, the summoner. Released in 1993, it explores themes of love and morality in a noticeably upbeat mood compared to his previous release, the introspective The Soul Cages released in 1991 after the loss of both his parents in the 1980s.

Recorded in 1971, shortly after he departed Cadet where he served as a house sideman-playing on dozens of records and a prefferred guitarist for Curtis Mayfield and Jerry Butler, Phil Upchurch headed for the West Coast and Blue Thumb Records. Produced by Tommy LiPuma, Upchurch's Darkness, Darkness is his quintessential (double) album, full of laid-back funky grooves, elegant, mind-blowing guitar work, elegant string and horn arrangements, and fine Fender Rhodes work from Donny Hathaway with legendary session bassist Chuck Rainey and smooth jazz piano great Joe Sample in the house. Upchurch effortlessly walks the line where jazz, blues, rock, soul, and funk fold into one another, yet he never gives quarter in the process.

Why mess with a great formula if there's no need to change? The Pretenders espoused this winning philosophy on the magnetic Pretenders II, a spectacular sophomore record that lived up to the promises of its breakthrough debut and replicated the 1979 effort's distinctive, can't-miss musical and lyrical flair. Part pop, part new-wave punk, part R&B, part soul, and 100% pure melodic rock n' roll, Pretenders II continued to send the quartet on its quick rise to the top and still serves as an admitted inspiration for bands ranging from Kings of Leon to Garbage. The key to the record's enduring appeal lies in the chemistry between iconic frontwoman Chrissie Hynde and inventive guitarist James Honeyman-Scott. Akin to legendary pairings like Mick Jagger and Keith Richards, or Steven Tyler and Joe Perry, the male-female duo operates as an inseparable team, with one member rousing the other and driving them to greater heights.

Taking the hard rock inclinations of Generation Terrorists to an extreme, the Manic Street Preachers delivered a flawed but intriguing second album with Gold Against the Soul. Inspired by Guns N' Roses, the Manics decided to rework their working-class angst as heavy arena rock; they seize upon the latent politicism of Guns N' Roses' tortured white-trash metal, interpreting it as a call to arms. Since the Manics are more intellectual and revolutionary than the Gunners, Gold Against the Soul burns with inspired, if confused, rhetoric.

This is an odd album, mostly owing to the widely differing sounds represented on it. Though often credited exclusively to Gene Chandler, about half of it is comprised of Chandler's work with the Dukays, the group of which he was a part until the release of "Duke of Earl" (which was a Dukays recording released as a Chandler solo single). The Dukays material is fine if relatively undistinguished late-'50s R&B harmony vocal material, mostly consisting of pleasant romantic ballads. Chandler's work, by contrast, casts him in a mode very similar to Ben E. King's immediate post-Drifters recordings (he even does "Stand by Me" here). There's a considerable chasm between the doo wop and the solo sides, and some listeners might even get dizzy after a few switches back and forth. And the album is dominated by the later tracks, circa 1965, most notably "Turn on Your Love Light," where Chandler moves into the upbeat soul sound that would carry him from the mid-'60s all the way through into the 1970s (and a professional rendezvous with Curtis Mayfield). The sound is excellent, and if you can take the switches in style and mood, this is a fun album. [The original 12-song album has been reissued on CD in Japan under the same title and with the same cover art, with audiophile sound and five bonus cuts drawn from deeper in the Vee-Jay library.]

Jam Session [Recorded 1952]. Jam Session was compiled from a 1952 jam session which brought together three of history's greatest alto saxophonists; Parker, Johnny Hodges and Benny Carter, as well as Ben Webster and Flip Phillips on tenor sax. Orchestrated by Norman Granz to come as close to an authentic jam session as possible, this is the first of the Jazz at the Philharmonic series. The album includes an original blues tune ("Jam Blues"), a medley of ballads selected by each musician, and a mellow blues tune called "Funky Blues." The standard "What is This Thing Called Love," stands out particularly for its follow-the-leader style ending, with each musician trading fours. Interestingly, the meeting of these three greats, with their widely varying styles, results not in spectacular and fiercely competitive playing, but rather in a slight muting and sense of reserve from all three…

Either the mid-'70s or the addition of Ted Turner's replacement, Laurie Wisefield, brought about a severe identity crisis for Wishbone Ash. No longer were they the self-conscious band that evolved from their blues-based debut to their prog precursor Pilgrimage to their progressive tour de force Argus. While Wishbone Ash was still a guitar-oriented band, Locked In provided no originality and, save for a guitar refrain in "Rest in Peace," no memorable passages whatsoever. While his credentials are impressive, producer Tom Dowd was not the man for the job. He was much better suited as a producer of Southern rock, jazz, and R&B acts. Again, Wishbone Ash suffered from inadequate lead vocals, but that wasn't as serious a problem as their atrocious songwriting.