On the one hand, bands like Jane's Addiction and the Red Hot Chili Peppers returned organic instrumentation and a psychedelic, spiritual vibe to popular music.
Stepping even more explicitly into the time machine, the Black Crowes and Lenny Kravitz effected a completely atavistic reimagining of the present into a polyester and corduroy swathe division of the past.
The sudden reemergence of the sideburn on the cast of 90210 threw entire segments of the male population into instant coiffure crisis: to shave or not to shave, that was the question.
Somewhere in the middle of all of this was Guns N' Roses, when they released their highly anticipated double album, Use Your Illusion 1 and 2, the snarling standard bearers of Los Angeles Glam had unexpectedly evolved to epic nine-minute piano-driven rock theater.
In the face of this sudden retrograde undertow in popular culture, that there were still bands cranking out thunderous anthems set to smoke machines and light beams was actually kind of amazing, and I for one, wasn't complaining.
The most recent product of a lineage that ran from Kiss and Queen through Van Halen to Def Leppard and Ratt.I remember thinking that legions of teen girls who bought Pornograffitti expecting more weepy baladeering were going to be pretty disappointed when nine out of 13 tracks on the album were face-melting funk metal.
Empowering these hermetically tight grooves was the fastest and most high-tech version of the guitar hero CPU, at the click of a metronome, Nuno Bettencourt could transition from slippery funk to spiral galaxies of tapping.
Like Steve Vai before him, Nuno had assimilated each of the previous decades' technical advances into a playing style that covered every possible mode of expression.
But where Vai was a new age searcher, an artist soul who had graduated from his stint with Roth to launch a hugely successful career as an instrumental solo artist.
Nuno, on the other hand, was more like Eddie, a guy in a band, driven to craft three-minute fist pumpers.Nuno's obvious Top 40 sensibilities even led to the occasional impressive vocal turn.
With such a complete complement of musical abilities, if the genetic lottery hadn't already been won, there was yet one other quality that set him apart.
He could begin a part tightly wound and intense, then wind it up even more, and then gradually open up the bass notes until they were wide open and loose as energy level peaked.
As the 80s progressed, this aggressively muted lead sound became a key component of the buffed-up, hyper-masculine guitar vogue.The stark contrast between open notes and the utterly dead staccato of muting was like a one-armed push-up display of power.
And the clarity of Nuno's picking in the intro, as well as the almost rococo level of muting that accompanied it, announced itself very clearly as an example of totally cutting-edge guitar work.
In the movie itself, Play With Me was used as the score for a scene in which a motley crew of historical personages runs amok in a California shopping mall.
But now, more than a decade past Eddie, it seemed only natural that technical advances in guitar playing would make hyper-performance possible for Top 40 rockers as well.
Nuno's almost bionic blend of speed, precision, cleverness, and songwriting ability, all wrapped up in a mainstream package, made him the ultimate modern guitar warrior.
I'd been in such a state of denial, I'd placed so much of my self-confidence on being good at guitar that I'd entered this contest not so much because I believed I could walk away with it,