Triad Architecture, Part 2

 
John Goldsby
 
 
IT’S ONE OF THE GROOVIEST TRACKS in the entire history of jazz. Bassist Sam Jones and powerhouse drummer Art Blakey sneak into the intro of “Autumn Leaves” like bandits, stealthy and sure-footed. After Julian “Cannonball” Adderley and shooting star Miles Davis state the theme, Jones and Blakey start tippin’, digging into the ultimate head-bobbing groove. Many fans and critics say that Somethin’ Else [Blue Note, 1958] ranks as the best jazz album—ever. It was not only the front line of Adderley and Miles, but also the rhythm section of Hank Jones (piano, no relation to Sam), Blakey, and Sam Jones that make this album magical.

http://www.bassplayer.com/uploadedImages/bassplayer/articles/BP0510_Wood_Triad_Ex-1.jpgWhat is it about Sam’s playing that makes everything so hip? Check out the recording and you’ll hear lots of basic triads, 7 chords, scales, and leading tones. Nothing special there, but Jones had a way of delivering the right note at the right time, a deep and unshakable groove, and a complete command of the basic building blocks of harmony and melody. A sample line from the first four bars of an “Autumn Leaves” chorus (Ex. 1) finds Sam laying down the root of each chord on beat one of each measure and outlining the changes with simple triads.

In the March issue we looked at triads and inversions of triads. I have found that many bass players think triads are too simple, not hip enough, and something to play only “when you can’t think of anything else.” The truth is, triads can be inverted, combined, and linked together in countless ways. However, many bassists do not practice triads in all inversions, thereby limiting what they play and how they move from one inversion to the next.

http://www.bassplayer.com/uploadedImages/bassplayer/articles/BP0510_Wood_Triad_Ex-2.jpgExample 2 shows a basic walking line on the first four bars of “Autumn Leaves” using only triads beginning on the root of each chord. Playing the root on beat one is a precise way to outline harmonic movement. Note the chromatic leading tone on beat four of bar 2 (the note Cb, which is the same as B). Each note in a bass line can be analyzed as belonging to a certain category: chord tone, scale tone, leading tone, or chromatic passing tone.

A leading tone can be a half-step or a whole-step away from a target note. A chromatic passing tone is always one half-step away from the target note. It can be either a note from the corresponding scale, or a note outside of the scale. Usually in a jazz walking line, we place leading tones on beat four of a measure to lead into a strong chord tone on beat one of the next measure. The chromatic leading tone Cb on beat four in bar 2 connects the note C (the 5th of the F triad) to the note Bb (the root of the Bb triad).

http://www.bassplayer.com/uploadedImages/bassplayer/articles/BP0510_Wood_Triad_Ex-3.jpgBy starting on different notes of the chord, we can play a more melodic line (Ex. 3), emphasizing how the chord tones move in the IIm-V-I progression. The Cm triad is outlined starting on the 3rd (the note Eb), and the F triad is also outlined starting on the 3rd (A). There are leading tones on beat four of bars 1, 2, and 3.

http://www.bassplayer.com/uploadedImages/bassplayer/articles/BP0510_Wood_Triad_Ex-4.jpgExample 4 starts with the 5th of Cm (the note G) on the first chord. From the 5th, the line moves down the triad. The leading tone Bb on beat four also happens to be the 7th of the Cm7 chord. This leads nicely into the 3rd of the F triad, A. In bar 2, the leading tone Eb on beat four is the 7th of the F7 chord, which leads into the 3rd of the Bb chord, the note Din the next bar. In bar 3, the Aon beat four—which is the 7th of the Bbmaj7—leads into the 3rd of the Eb triad in the following bar. A general rule: When playing a chord progression in the cycle of 5ths (like this example), the 7th of the chord on beat four works well as a leading tone into the 3rd on beat one of the next chord. We are still thinking triads, but just adding leading tones on beat four. These leading tones happen to be the 7th of the corresponding chord.

http://www.bassplayer.com/uploadedImages/bassplayer/articles/BP0510_Wood_Triad_Ex-5.jpgExample 5 demonstrates the use of a common tone in two chords. The Cm triad starts on C on beat one; in bar 2, the F7 triad also begins on the note C, but changes the notes on top to outline the F triad. Beat one in bar 3 is a D, which makes for nice voice-leading up from the low C in bars 1 and 2. In bar 4, beat one is an Eb, continuing the contour of the walking bass melody. This can make a bass line function as counterpoint—a complementary bass melody to the solo line on top. Now play through the changes and improvise your own line. To stay in our triad vibe, only play triads on the first three beats, and a leading tone (either chromatic or from the chord or scale) on beat four of each measure.

http://www.bassplayer.com/uploadedImages/bassplayer/articles/BP0510_Wood_Triad_Ex-6.jpgTriads obviously work well in walking bass lines, but also in other types of music. Example 6 shows a typically funky bass line over the same four-bar chord progression. Note the passing tone in bar 1, this time on the last 16th-note of beat four. After you master the written example, see if you can improvise your own through the changes in a repeated loop, sticking only with the triads and adding leading tones on the last eighth or 16th of each measure.

 http://www.bassplayer.com/uploadedImages/bassplayer/articles/BP0510_Wood_Triad_Ex-7.1.jpg  http://www.bassplayer.com/uploadedImages/bassplayer/articles/BP0510_Wood_Triad_Ex-7.2.jpg

To master triads in a practical way, you need to be able to play all triads in all inversions. After you can do that, you need to be able to improvise playing triads through various chord progressions. Example 7 moves between D major and G major, using only notes of each triad. Once you can play the written notes, see if you can improvise your own line over the eight-bar progression in a loop, only using notes from each triad. By limiting your note choices, you will quickly find out where your weak points lie. You will also force yourself to create some new ways to hook up chords using triads!

http://www.bassplayer.com/uploadedImages/bassplayer/articles/BP0510_Wood_Triad_Ex-8.1.jpg http://www.bassplayer.com/uploadedImages/bassplayer/articles/BP0510_Wood_Triad_Ex-8.2.jpg

Example 8 is a walking bass line, which moves from D major to its relative minor, B minor, then to Gmajor and finally to G’s relative minor, E minor. Notice that because of the relationship of these chords, only one note changes each time a chord changes. This exercise will help you become familiar not only with the differences in triads, but also with their similarities. Changing just one note can make a huge difference in the quality of the sound. Now play your own walking line over the eight-bar pattern, using only the notes of each triad. It’s hard work to play simply.

Learn all of your major and minor triads in all inversions (starting on each note of every triad). Practice the simple things on the bass, and learn them to perfection. When you have all of the building blocks in your ears and under your fingers, you will be on to somethin’ else.

Check out John’s new releases, The Visit and Space for the Bass [both on Bass Lion]. He is the author of The Jazz Bass Book [Backbeat Books], as well as Jazz Bowing Techniques for the Improvising Bassist [Aebersold Jazz], which recently came out in its 4th edition. For more info, visit John’s website at www.goldsby.de.

 
 
 
 
 
 
 
 
 
 
 
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Anonymous Venus
Good article and good album, too . How about a link to part one?
 

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