The Brecker Brothers join forces for a set of mostly high-powered originals at a concert in 2003. Their post-bop music is generally funky (although "Freefall" is an uptempo cooker) and sometimes a bit bombastic yet is never predictable. Trumpeter Randy Brecker and tenor saxophonist Michael Brecker take many fiery solos while also sounding warm on ballads. They are supported by a particularly strong rhythm section. In addition, the WDR Big Band contributes 14 horns and a guitar to accompany the core group. The individual songs may not be overly memorable (although "Some Skunk Funk" has been getting covered by other musicians) but the Breckers' solos are full of exciting moments.

Emboldened by the popularity of Inner Mounting Flame among rock audiences, the first Mahavishnu Orchestra set out to further define and refine its blistering jazz-rock direction in its second – and, no thanks to internal feuding, last – studio album. Although it has much of the screaming rock energy and sometimes exaggerated competitive frenzy of its predecessor, Birds of Fire is audibly more varied in texture, even more tightly organized, and thankfully more musical in content. A remarkable example of precisely choreographed, high-speed solo trading – with John McLaughlin, Jerry Goodman, and Jan Hammer all of one mind, supported by Billy Cobham's machine-gun drumming and Rick Laird's dancing bass – can be heard on the aptly named "One Word," and the title track is a defining moment of the group's nearly atonal fury. The band also takes time out for a brief bit of spaced-out electronic burbling and static called "Sapphire Bullets of Pure Love." Yet the most enticing pieces of music on the record are the gorgeous, almost pastoral opening and closing sections to "Open Country Joy," a relaxed, jocular bit of communal jamming that they ought to have pursued further.

"I'm Going Home" from Ten Years After's previous release put them on the charts, at least in the U.K. (the band's U.S. breakthrough was at Woodstock a year after its release), but the four-piece was already experimenting with ways to expand their basic boogie rock template. Stonedhenge was the result, as producer Mike Vernon helped steer the band into a more jazz- and blues-oriented direction. That's especially evident in the swinging "Woman Trouble," but this set is generally more prone to broadening the sound without losing TYA's basic concept. It doesn't always gel – the four short pieces that feature each musician alone on their instrument is an interesting idea that ends up as a distraction – yet the album boasts some terrific performances by a group that was hitting its peak. Canned Heat, who TYA supported in America and who were also trying to push their own boogie envelope, were a big influence, born out by the very Heat-sounding "Hear Me Calling." Alvin Lee keeps his fleet fingers in check, preferring to work his style into a more organic fusion.

World renowned fusion drummer Dennis Chambers (Santana Parliament/Funkadelic, John McLaughlin, Niacin, Mike Stern) joins forces with Tribal Tech's Gary Willis and Scott Kinsey (Joe Zawinul, Bill Evans, Robben Ford) and legendary guitar duo Garsed/Helmerich for a no holds barred fusion super session. Uncle Moe's Space Ranch features some of the hottest grooves and most unrestrained fusion ensemble and solo work ever recorded.

With the possible exception of Richard Pinhas' Heldon, Gilbert Artman's Lard Free was probably the premier French progressive group of the '70s. The prolific Heldon might win in terms of amount of material, but the three near-perfect albums by Lard Free (despite the truly wretched band name) probably have them beat in terms of overall quality. Although Artman, a drummer who also dabbles in synthesizers and piano, called Lard Free a group, he was the only constant member; all three albums have different lineups. 1973's Lard Free consists of relatively short pieces with prominent piano and saxophone parts, and as such is the most jazz-oriented of the three. The following year's I'm Around About Midnight consists of three long pieces with much more synthesizer; at times, it sounds almost like early (pre-ambient) Tangerine Dream, or perhaps Clear Light, the French collective Artman and the then-current lineup of Lard Free occasionally worked with around this time. 1977's Lard Free III, also known as Spirale Malax, is Artman's best work, a pair of side-long experiments that combine space music, jazz, and King Crimson-style heavy progressive rock better than many groups (including King Crimson) could ever hope to manage.

Is There Anything About? is the seventh album by British jazz fusion group Brand X. It is the last album to feature longstanding members Robin Lumley and Phil Collins. It was assembled from outtakes from the 1979 sessions. These sessions produced around twenty tracks which became Product (1979), Do They Hurt? (1980) and Is There Anything About? (1982). "Modern, Noisy and Effective" is the backing track to "Soho" with a new keyboard line overdubbed over the top of it. "A Longer April" is just an extended version of "April" from Product, with a bit of synth noise added in the middle. "TMIU-ATGA" is taken from an old cassette tape running in the studio when the band were improvising.

Al di Meola continues to broaden his musical horizons with Flesh on Flesh, his fourth release for the Telarc recording label. The great guitarist is joined by two members of his World Sinfonia acoustic group – Gumbi Ortiz on percussion and Mario Parmisano on keyboards – in addition to such stellar musicians as Gonzalo Rubalcaba, flutist Alejandro Santos, and bassist Anthony Jackson, who recorded with di Meola on his best-selling Elegant Gypsy album in the mid-'80s.

With Wayne Henderson of Crusaders fame handling the production, Caldera showed a great deal of promise on its self-titled 1976 debut album. The Latin jazz-fusion unit isn't afraid to take chances on such imaginative pieces as Jorge Strunz's "El Juguete" and Eduardo del Barrio's "Exaltation" – chances that pay off in a major way. Though one can tell that Caldera's members were well aware of such explorers as Return to Forever, Weather Report, and the Mahavishnu Orchestra, it's also clear that they were major Earth, Wind & Fire fans and had absorbed a wide variety of Latin music. Strunz and del Barrio were hardly the only fusionists who incorporated Latin rhythms in the 1970s – Chick Corea, George Duke, Wayne Shorter, Al DiMeola, and Joe Zawinul were all well aware of the musical innovations of Latinos, but Caldera was unique in the sense that the band represented a real melting pot of Latinos bringing different ideas to the table. And on this LP, those ideas work magnificently.

Live at the Philharmonie was the Dave Pike Set's third record for MPS in the year 1969 alone; Noisy Silence-Gentle Noise (MPS 15215) and the stellar Four Reasons (MPS 15253) preceded it. One of the most interesting ideas about this amazing set of music concerns the notorious circumstances under which it was recorded, at the 1969 Berlin Jazz Days festival. The reason for this is the year itself: Miles Davis and his group had brought their fiery brand of electricity to jazz and its reverberations were being heard the world over. At the same time, prog rock and Krautrock were making their heads (considered ugly by jazz purists) known in the guises of Can, Neu!, Amon Düül, and Faust. Add to this Charlie Mariano's great band, the new hip embracing of rock culture by the Kenny Clarke-Francy Boland Big Band, Peter Herbolzheimer's Rhythm Combination & Brass, and any number of other groups, and Berlin was in a state of tension. The wild thing is, everybody agreed on Pike's group – it was the bridge between the jazz tradition, what was transpiring, and what was to come.