These 12 songs were recorded by Twin Engine in 1971 with the intention of getting an album together for release on United Artists, but they weren't issued until more than 30 years later. The music has very much of a 1970 aura, mightily influenced at different points by the Let It Be-era Beatles (particularly in the guitar sound of "Give My Love a Chance," "The Time Is Now," and "Mistress of the Morning"), Crosby, Stills, Nash & Young (a riff in "The Time Is Now" seems airlifted directly from Neil Young's "Cowgirl in the Sand"), American Beauty-era Grateful Dead, and the country-rock being laid down by the Flying Burrito Brothers/Byrds axis in Southern California in the late 1960s and early 1970s. (That last influence may not have been entirely due to chance, as Byrds and/or Burritos members Chris Hillman, Clarence White, and Sneaky Pete Kleinow are all referred to in the packaging as having played on the sessions, though it's not specified who played on what track). It's very accomplished, and Twin Engine's duo harmonies are quite cheerful and invigorating.

Retrospective: The Best of Buffalo Springfield may not be definitive, but it's a good, basic overview of the group's career, containing most of the group's biggest hits and signature songs. Yes, several worthy album cuts are missing, but as a sampler, this works quite well, offering a nice introduction to the group.

Portraits is a three-disc, 61-track box set covering Emmylou Harris' entire career for Reprise and Warner Records, which spans from 1974 to 1992. Not only does the box select highlights from classic albums like Luxury Liner, Roses in the Snow, and Blue Kentucky Girl, but it also features her early duets with Gram Parsons and selections from the Trio album she recorded with Dolly Parton and Linda Ronstadt. Portraits doesn't dwell too long on unreleased material – there are only five unearthed tracks on the entire set – preferring to sketch out a full overview of her career. While there might be a few favorite tracks missing, the box nevertheless fulfills its goals quite nicely – anyone looking for a comprehensive compilation of Emmylou's career will not be disappointed.

Probably best known as a member of the Notting Hillbillies, Brendan Croker was also a well-respected singer/songwriter and session guitarist both before and after his involvement with that band. Drawing on strong folk, blues, and country roots, Yorkshireman Croker brought a strong, Woody Guthrie-ish lyrical outlook to his musical palette, and was equally at home with Van Morrison-style blues or American country music of any era. In fact, his deep knowledge of and affection for American roots music, coupled with his fine singing and guitar playing, at one point gave rise to Croker being hailed as "the British Ry Cooder".

Texas Troubadour is a four-disc box set that packages the late songwriter Townes Van Zandt's first seven studio albums for the Poppy and Tomato labels: For the Sake of the Song (1968); Our Mother the Mountain (1969); Townes Van Zandt (1970); Delta Momma Blues (1971); High, Low and In Between (1972); The Late Great Townes Van Zandt (1972), and Flyin' Shoes (1978). In addition, there are four studio outtakes from 1972-73 and a decent portion of Live at the Old Quarter, Houston issued in 1973. Charly reproduces the original cover art in miniature, two covers to each CD. Sound is the same as on the original CD issues, so fans who already own these albums will not be served by purchasing them again in this format. Musically, the work is superb, and since many of Van Zandt's recordings are out of print, this is a fine argument for getting them altogether. Another plus is Adam Komorowski's extensive biographical essay included in the 36-page color booklet that's loaded with photos.

Given the quirkiness of Neil Young's recording career, with its frequent cancellations of releases and last-minute rearrangements of material, it is a relief to report that this two-disc compilation is so conventional and so satisfying. A 35-track selection of the best of Young's work between 1966 and 1976, it includes songs performed by Buffalo Springfield, Crosby, Stills, Nash & Young, and the Stills-Young Band, as well as solo work. In addition to five unreleased songs, Decade offers such key tracks as the Springfield's "Mr. Soul," "Broken Arrow," and "I Am a Child"; "Sugar Mountain," a song that had appeared only as a single before; "Cinnamon Girl," "Down by the River," and "Cowgirl in the Sand" from Everybody Knows This Is Nowhere; "Southern Man" and the title track from After the Gold Rush; and "Old Man" and the chart-topping "Heart of Gold" from Harvest. This is the material that built Young's reputation between 1966 and 1972, although he is more idiosyncratic with the later material, including the blockbusters "Like a Hurricane" and "Cortez the Killer" but mixing in more unreleased recordings as the set draws to a close.

Since Crazy Horse first came to public attention as the backing band for Neil Young in concert and on his albums Everybody Knows This Is Nowhere and After the Gold Rush, it makes sense to expect that the band on its own would play something similar to the hard guitar rock and country-rock heard on those albums, albeit without Young's distinctively quirky singing and songwriting, and that is what one hears to a large extent on the debut album Crazy Horse. (Although this is their first recording under that name, core members Danny Whitten, Billy Talbot, and Ralph Molina have appeared previously on record as part of the doo wop group Danny & the Memories and the rock band the Rockets.) But there is more going on than that. Also joining in, as singers and songwriters as well as sidemen, are veteran arranger/producer Jack Nitzsche and guitarist Nils Lofgren, while Ry Cooder adds slide guitar to a number of tracks. The result is a varied group of songs that range in style from rock and country to blues and folk.

This one-man extravaganza finds John Fogerty plowing the same ground he worked with Creedence Clearwater Revival. This mix of originals and rock & roll classics finds him in fine voice, with the familiar vocal scream and hot guitars augmented in places by saxophones reminiscent of CCR's "Travelin' Band." Several of these songs rank with the top tier of Fogerty's Creedence material, particularly "The Wall," "Almost Saturday Night," and the anthemic "Rockin' All Over the World." He also delivers satisfying versions of Jackie Wilson's "Lonely Teardrops" and Frankie Ford's "Sea Cruise" (written by Huey "Piano" Smith). The closer, "Flyin' Away," could have come off the Doobie Brothers' Toulouse Street. This underappreciated album is worth checking out.

Ry Cooder has always believed in the "mutuality in music," and this may be no more evident in his career than with his fifth album, Chicken Skin Music (a Hawaiian colloquialism, synonymous with goosebumps). Even more than usual, Cooder refuses to recognize borders – geographical or musical – presenting "Stand By Me" as a gospel song with a norteño arrangement, or giving the Jim Reeves country-pop classic, "He'll Have to Go," a bolero rhythm, featuring the interplay of Flaco Jimenez's accordion and Pat Rizzo's alto sax. Elsewhere, he teams with a pair of Hawaiian greats – steel guitarist and singer Gabby Pahinui and slack key guitar master Atta Isaacs – on the Hank Snow hit "Yellow Roses" and the beautiful instrumental "Chloe." If Cooder's approach to the music is stylistically diverse, his choice of material certainly follows suit. Bookended by a couple of Leadbelly compositions, Chicken Skin Music sports a collection of songs ranging from the aforementioned tracks to the charming old minstrel/medicine show number "I Got Mine" and the syncopated R&B of "Smack Dab in the Middle".