Arriving at the twilight of the 1960s, Santana were psychedelic pioneers who ushered Latin rock into the mainstream with their first three albums: Santana, Abraxas, and Santana III. Thanks to their appearance at Woodstock, their eponymous album was a smash hit right out of the gate, with its single "Evil Ways" making it into the Billboard Top Ten in 1969. They remained at the top of the charts until 1973, when leader and namesake guitarist Carlos Santana began exploring esoteric, spiritual jazz fusion on his own. Carlos may have wandered away from the band who shared his name, but he always returned to the group, sustaining them through years both productive and fallow.

The time that has flown is Smokey's 50 years in the business, but it could just as well refer to the number of years since Robinson has released a smooth soul album: almost 20 full years! Smokey, of course, has stayed active during the interim, both on-stage and on record, but Time Flies When You're Having Fun marks a return to the coolly simmering quiet storm that was his stock in trade during the '70s and '80s. Apart from production techniques, not much has changed in Smokey's music during the time off, either: this is still smooth, unhurried soul that vacillates between elegance and supper-club classiness. Of course, since these are two sides of the same coin, they fit together seamlessly, with the only question being whether the immaculately polished music veers toward the corny, but whenever it does, Smokey's impeccably tailored vocals steer it back to toward the sweetly romantic. After all these years, Smokey still makes it all seem easy – so easy that it's puzzling why he hasn't made a record like this in so long, because as this comforting, velvety album proves, nobody does it better than he.

Before the arrival of Carlos Santana's eponymous band, the San Francisco rock scene drew the inspiration for its jam-oriented music mainly from blues, rock, and Eastern modalities. Santana added Latin music to the mix, forever changing the course of rock & roll history. On their groundbreaking debut album, the group mix Latin percussion with driving rock grooves. Santana's unique guitar style, alternately biting and liquid, vies with the multiple percussionists for the sonic focus. Unlike later efforts, Santana's first album features an abundance of loose, collective compositions based on a couple of simple riffs ("Jingo," "Soul Sacrifice"). This approach allows for Santana and his bandmates to flex their improvisational muscles to fine effect. The high-energy level on Santana is infectious – the laid-back feel of other '60s San Francisco groups was clearly not for Carlos and co.

The San Francisco Bay Area rock scene of the late '60s was one that encouraged radical experimentation and discouraged the type of mindless conformity that's often plagued corporate rock. When one considers just how different Santana, Jefferson Airplane, Moby Grape, and the Grateful Dead sounded, it becomes obvious just how much it was encouraged. In the mid-'90s, an album as eclectic as Abraxas would be considered a marketing exec's worst nightmare. But at the dawn of the 1970s, this unorthodox mix of rock, jazz, salsa, and blues proved quite successful. Whether adding rock elements to salsa king Tito Puente's "Oye Como Va," embracing instrumental jazz-rock on "Incident at Neshabur" and "Samba Pa Ti," or tackling moody blues-rock on Fleetwood Mac's "Black Magic Woman," the band keeps things unpredictable yet cohesive. Many of the Santana albums that came out in the '70s are worth acquiring, but for novices, Abraxas is an excellent place to start.

Marathon marked the addition of keyboard player Alan Pasqua and singer Greg Walker's replacement by singer/guitarist Alex Ligertwood in the Santana lineup. Otherwise, the album was notable for consisting entirely of band-written material, although those songs were in the established R&B/rock style evolved on albums like Amigos, Festival, and Inner Secrets.

Billed as the first Santana compilation to span his entire career, it is true that Ultimate Santana does indeed run the gamut from 1969's "Evil Ways" to 2002's "Game of Love," but if you think that means it handles all phases of his career equally, you'd be sadly mistaken. Essentially, this 18-track set plays like a collection of highlights from his Supernatural-era comebacks, spiked with a couple of classic rock oldies – because that's what it really is. It contains no less than ten superstar duets, including new numbers with Nickelback's Chad Kroeger (the streamlined and smoothed "Into the Night," which has little of Kroeger's trademark growly histrionics) and Jennifer Lopez and Baby Bash ("This Boy's Fire," a dance number where Santana seems incidental), plus a version of "The Game of Love" with Tina Turner (don't worry, the lighter, brighter, superior Michelle Branch version is here too) and plus "Interplanetary Party," which is a new band recording that sounds like a star duet.