This post may sound a bit sentimental or nerdy, but at the very least, it shouldn't be confused with mere nostalgia. I've been thinking about where I had my first memorable encounters with a few harmonic ideas in non-jazz music.
In my defense, I'd like to mention the following:1) I had hardly any exposure to jazz before playing in the high school jazz band, so my early awareness of these devices happened when playing much simpler music.
2) I was a drummer and trombonist at the time, and with no background in theory, it was perhaps unfortunate that I couldn't identify these devices until later. I didn't play guitar or really know any music theory until high school.
3) These might not be my true first encounters with these ideas but merely the ones that made the earliest impressions as my listening habits shifted from "liking" music to "learning" music.
maj7 chord:
Stone Temple Pilots: "Plush," Core: There was something magical about this song's chorus. I realized it was only two chords, but it was hard to tell why they were so different. (Please also see "bVII chord" below.)
Foo Fighters: "Floaty," Foo Fighters: This song's verse contained several maj7 chords in succession. That -- combined with the jangly acoustic guitars, the hazy-sounding production, that odd phasing effect, and Dave Grohl's phantasmal, almost unintelligible, voice -- kept it on repeat on my stereo for a while as I tried to decipher what made this special. (Please also see "bVII chord" below.)
maj9 chord:
Sleater-Kinney: "Things You Say," Dig Me Out: I picked this album up randomly in a used record store when I was much too young to understand its rebellious significance. It sounded special to me because I didn't have any other music like it -- the obtuse, quirky guitar lines, the lack of bass, the surf-rock drums, the cutting, jittery vocals. As you may know, I tend to like music with complex or interesting harmony yet this band was all about melodies and energy -- a more linear approach. Those lines could intersect to create some great harmonic moments, though, and this chorus was one of them. I admit it's odd that I remember them when I think of maj9 chords. In fact, I know it's odd to my friends that I enjoy them at all. (Note: For a brief moment, that first maj9 chord turns into a maj9#11 chord, but since it's due to the guitar melody, I count it as more of a passing tone.)
Smashing Pumpkins: "Mayonaise," Siamese Dream: Pumpkins are famous for their huge sound, particularly on this album, but while everyone talks about the thirty-something tracks of guitar, I think the most important ingredients of this track's depth are those thick chords. They could make even one acoustic guitar sound enormous.
maj9#11 chord:
The Sundays: "Here's Where the Story Ends," Reading, Writing and Arithmetic: I think this song drips of nostalgia even for people who don't remember it. Maybe it's the wistful vocals and lyrics or the tons of reverb and chorus. Again, with me, it's almost always the chords. The first chord, Gmaj7, is already beautiful. The second, Cmaj9#11, was pretty mysterious to me then. The two combined truly did something to rewire my nascent musical mind. I don't believe I was aware how unusual the melodies are until recently, though.
bVII chord (e.g., a Bbmaj chord in a song in the key of C major):
Smashing Pumpkins: "Hummer," Siamese Dream: The verse to this song hypnotized me not only because of the chorus effect but I kept wondering why that second (A7sus4) and third (Cadd9) chord sounded so melancholy or poignant. I should add that, in this instance, the A7sus4 contributes as much to that feeling as the add9 chord does.
Stone Temple Pilots: "Plush," Core: Though in the key of G major, the chorus consisted of Ebmaj7 and Fmaj7, the bVI and bVII of G. (Please also see "maj7 chord" above.) I don't think I'm lamenting overly much to wish today's mainstream music audience could tolerate something like that.
Foo Fighters: "Floaty," Foo Fighters: I admit the descending maj7 chords, E to D to C (please also see "maj7 chord" above) sound a bit amateurish to me now because it's the same fingering shifted down twice. But the overall harmonic and sonic qualities of this were strange to someone who thought this band might be Nirvana, Part II.
Eventually, I got into jazz and other kinds of music, not to mention studying music in academia, so these ideas were no longer as fresh. Particularly in jazz, using chord extensions like these are so common, and they're just one fundamental piece of a complex galaxy of musical choices one makes every moment. I don’t wish I could "go back" and experience these ideas for the first time again, though. I think it's even more rewarding to know exactly what I'm listening to now. And just because I know what a maj9#11 chord is certainly doesn't mean I love the Sundays any less.