Odd Meter Bass Groove – 7/4 Rock Bass Groove with Bass TAB – Bass Practice Diary – 14th May 2019
This week I’ve been working on writing play-along pieces for my upcoming book. It will be my second bass book released by Fundamental Changes. The video features a bassline that I wrote for an odd meter rock piece. It’s a rock bass groove in 7/4 time signature. You can find my video guide to playing bass in odd meters here.
What Are Odd Meters?
The term odd meter simply means any time signature that has an odd number of beats or subdivisions in a bar. Odd meters divide opinion amongst musicians. Some musicians (including me) love them and think they can flow and groove just as well as any groove in 4/4. Others hate playing them.
My approach to playing odd meters is not that different to my approach for playing in any meter. But I think that musicians who are not comfortable playing in odd meters often feel that they have to do something different. And that might be the root cause of why they struggle to play them.
7/4 is an unusual time signature in rock and pop music but there are famous examples of its use. All You Need is Love by The Beatles, Money by Pink Floyd and Times Like These by the Foo Fighters all contain sections in 7/4.
Pentatonic Exercise for Bass Guitar – Bass Practice Diary – 7th May 2019
This week I’m featuring a pentatonic exercise. The reason that I’ve shared this is to show you how I approach practicing scales, or as I like to think of it harmony. I prefer not to use the word scale because it implies going up and down a pattern of notes. Whereas what I’m trying to achieve is learning how those notes fit all over the fretboard. And then coming up with different ways of playing them.
How to practice scales
When I’m practicing a particular scale or harmony, I like to come up with new and different ways to move the harmony around the fretboard. The example in the video is just one example that I came up with. But in a single practice session I might come up with 5 or 6 different exercises using the same scale and practice them all for a few minutes each.
This works for any scale, arpeggio or melodic pattern. It’s the same process that I use when I’m practicing any harmony. I’ve used the pentatonic scale as an example because it’s simple and most people know it.
The pentatonic scale exercise with bass TAB
Here is the pentatonic exercise for bass written out as I played it in the video. I’ve used the root note G for both examples because the open string works well playing the root note. But you could adapt this exercise for any scale that has a G natural in it.
First, here is the G minor pentatonic exercise.
The exercise is simply a three note pattern that starts with an open string. The open string first string is always the first note of the three note pattern. But the other two notes move up and down the neck on the second and third strings.
The final element of the exercise is a rhythmic element. The three note pattern is played with a 1/16th note feel. Meaning that the emphasis keeps shifting onto a different 1/16th note each time you repeat the three note pattern.
The Modes of the Melodic Minor Scale – Bass Practice Diary – 30th April 2019
Recently I did a video about the altered scale, which is one of seven modes that come from the melodic minor scale. You can find it here. That got me thinking about the other modes of the melodic minor scale. There are a few that I use quite a lot, but there are others that I almost never use. So this week I set myself the task of practicing all of them, and thinking about what harmonic context I can use them in.
If you’ve seen my altered scale video, you’ll already know that melodic minor scale is only one note different from a major scale. If you take out the major 3rd from a major scale and replace it with a minor 3rd, then you have a melodic minor scale.
This small alteration creates the potential for seven modes, that are each different and distinct from the seven major scale modes. (Ionian, dorian, phrygian, lydian, mixolydian, aeolian and locrian). Modes are extracted from scales by changing the root note to a different degree of the scale. For example, if you play the notes of a C major scale but change the root note to D, then you have a dorian mode.
What are the melodic minor modes?
These are the seven modes of the melodic minor scale. Each has been written out in one octave and I’ve written the implied chord symbol above each mode. I’ve chosen to use D melodic minor for this exercise.
The first mode is the melodic minor scale itself. I use the melodic minor to play on minor 6th chords and it can also be used on minor/major chords (meaning minor 3rd with a major 7th.
The second mode is like a dorian mode with a flattened 2nd. It implies a minor 7th chord. But the flattened 2nd is a strange note to play on a minor 7th chord. Hence, this is one of the modes that isn’t commonly used.
The third mode is like a lydian scale with a raised 5th. The implied harmony is a major 7th chord with a #5. I don’t currently use this scale a lot. But I’ll try and use it more in future, because it sounds cool.
The fourth mode is usually called lydian dominant because it has a raised 4th, like the lydian mode. But it also has a dominant (flattened) 7th. It’s a scale that I like to use on dominant 7th chords. It’s essentially a mixolydian scale with a raised 4th. Which makes it sound more interesting than a mixolydian scale when played on an un-altered dominant 7th chord.
The fifth mode is basically a mixolydian scale with a flattened 6th. I don’t use it very much but you could use it on a dominant 7th chord with a b13.
The sixth mode works well on half diminished chords (m7b5). It has a minor 3rd and 7th and a flattened fifth. But unlike the locrian scale, it has a natural 9th rather than a flattened 9th.
The seventh mode is the altered scale, which I’ve already covered in my previous video. It’s an extremely useful scale for playing on altered dominant chords.
Bass Practice Diary is One Year Old – 23rd April 2019
A year ago I decided to start documenting my bass practice by picking one thing that I was working each week and making a short video about it.
As a music teacher, I believe that if you want to keep improving your musicianship, then it’s essential that you keep finding new things to practice. It seems to me that a lot of people get stuck in the same practice routines, practicing the same things. And then they wonder why their playing isn’t progressing in the way that they want it to.
What I’m trying to show, is that there is an almost unlimited number of different things to practice. And many different ways that you can practice them.
I release the videos every Tuesday. And I haven’t missed a week in the whole year. So there are currently over 50 videos. All available for free without subscription.
If you would like to follow my free videos each week then you can always find them here on JohnnyCoxMusic.com. And if you subscribe to my Youtube channel and click on the bell icon, then you should be alerted each week when my videos are uploaded. You can also follow me on my Facebook page Johnny Cox Music. And you can find me on Instagram @johnny.cox.music
The Altered Scale – Bass Practice Diary – 16th April 2019
Jazz musicians love to play on dominant 7th chords. And the altered scale is a really important scale to practice if you want to create a jazz sound when playing on these 7th chords. I think that using the altered scale is often perceived as “advanced” harmony. But, as with most things, it’s easy when you understand it. So, here’s my very quick guide to using the altered scale on bass.
What is the altered scale?
The altered scale is a mode of the melodic minor scale. Meaning that it contains all of the same intervals as a melodic minor scale. The altered scale is essentially what you get when you play a melodic minor scale starting finishing on the 7th note of the scale.
So, what’s a melodic minor scale? It’s basically only one note different from a major scale. If you take a major scale and change the major 3rd to a minor 3rd, you have a melodic minor scale.
Here’s the notes of an F major scale.
And here are the notes of an F melodic minor scale.
Notice that the only difference is the third note. It’s an A natural in the major scale and an Ab in the melodic minor.
If you play the notes of an F melodic minor scale but use E (the 7th note) as the root note. You would be playing an E altered scale.
When you think about the notes of the F melodic minor with an E as the root note, it creates these interval relationships to the root note.
The 3rd of E7 would, of course, be written as G# not Ab. But the altered scale creates some interesting theoretical anomalies like that. Because the major 3rd note (Ab/G#) is actually the 4th note of the scale.
How do you use the altered scale?
As I mentioned at the start, the altered scale works really well on dominant 7th chords. You can think of the altered scale as being a kind of extended dominant 7th arpeggio with lots of chromatic alterations.
The scale includes the root, major 3rd and dominant 7th notes which are the fundamental ingredients of a dominant 7th arpeggio. But the other four notes are all chromatic alterations of some kind. Hence why it’s called the altered scale.
You can alter chord tones and extensions by moving them one semi-tone up or down. The 5th of E7 is B natural, but in the altered scale the 5th has been flattened to Bb. So the altered scale could be used on an E7b5 chord.
The 9th can be altered by sharpening or flattening it. The altered scale uses both alterations. So you could use it on an E7b9 or an E7#9 chord. The final alteration is a b13.
So you can use the altered scale to play on any of these altered dominant chord types. And you will sometimes see the chord symbol E7alt. Which implies a chord that could include any or all of these alterations.
So if you want to start using this altered dominant sound on your dominant 7th chords. Then start to think about using a melodic minor scale that starts one semi-tone above the root of the chord. So, if you’re playing on a D7 chord, think Eb melodic minor. For A7, thing Bb melodic minor, for G7 think Ab melodic minor, for B7 think C melodic minor etc.
Play Bass on Sus Chords (Suspended Chords) – Bass Practice Diary – 12th March 2019
Sus chords or suspended chords create a really cool modern sound. Last week I put out a video of a bassline I’d written on four sus chords. This week I want to explain a little bit of the theory behind my approach to playing on these types of chords.
What is a suspended chord?
I think there is often confusion over what the term suspended actually means when it relates to music. A suspended chord is simply a chord that doesn’t contain a third. A basic musical triad (three note chord) usually contains a root, a third and a fifth. And it’s the third that defines the chord as being either major or minor.
Suspended chords don’t use the third. The third is usually replaced by a fourth (sus4) or a second (sus2). Therefore they’re not major or minor chords. They need a different name, and that name is suspended. The name itself doesn’t really tell you anything important about the nature of the chords or how to play on them, so most musicians usually abbreviate and call them sus chords.
How do you play on sus chords?
Personally, I take a jazz approach to playing on sus chords. A basic sus4 or sus2 chord (like the kind you might find in a pop song) is all very well. But for me these chords get really interesting when you start extending them, creating richer fuller harmonies and chord voicings.
When I’m playing bass on sus chords, I like use the notes of a major 9th chord or arpeggio. But I think of the root note of the sus chord as being the 9th of the major arpeggio.
So, for example, G is the 9th of F major. So I can think of a Gsus chord as being an inverted Fmaj9 chord with the 9th becoming the root.
If you think of the notes of an Fmaj9 chord with the root G, then the chord tones are root, 2nd (9th), 4th, 6th (13th) and b7th (dominant 7th). So you can think of my Gsus chord as being a G7sus4 chord with a 9th and a 13th added as chord extensions. However, I would simply think of it as Gsus and the chord extensions are there at the discretion of the musicians voicing the chords.
More sus chord arpeggios
These kind of extended sus chords create a really cool modern jazz sound. I think they’re cool because they aren’t major or minor, so the sound of them is always a bit of a question mark. Almost like you’re not really sure when you hear them, how they’re supposed to make you feel.
Jazz Fretless Bass Groove on Suspended Chords – Bass Practice Diary – 5th March 2019
This week I’ve been writing original basslines on sus chords. And I’ve featured one of my lines in this video. This is the second time I’ve featured a fretless bass groove in my practice diary, and I’m planning to do many more in a variety of different styles and feels. You can find my first fretless bass groove video here.
When I’m practicing a particular harmony, chord progression or time feel, I like to compose original bass grooves that fit in to what I’m working on. This week I was working on suspended chord sounds. And here is an original bassline I’ve written on four sus chords. Gsus, Bbsus, Dbsus and Esus.
Each chord is two bars, and I’ve written the bass TAB for 4 string fretless bass. I’ll write more about the theory of playing on suspended chords in next week’s practice diary. But for now, this is just a mellow jazzy bassline that you can learn and practice. If you like it!
Quartal Chord Voicings on Bass Guitar – Bass Practice Diary – 26th February 2019
I haven’t done a video about bass chord voicings for a while. So, this week I’ve decided to practice some of my favourite jazz chords, quartal chord voicings. Quartal harmony is a jazz term which means harmonising chords in intervals of a fourth.
I did a video recently about playing modern jazz lines using 4th intervals. But I thought after making that video that I wasn’t telling the full story about using 4ths in modern jazz. The quartal chord voicings themselves create a very distinctive modern jazz sound. It’s instantly recognisable once you become familiar with the sound.
Chords are traditionally voiced in intervals of a third. Using quartal voicings in jazz became popular in the 1960’s after Miles Davis made quartal chord voicings a feature of his composition So What from the 1959 album Kind of Blue.
Quartal harmony was a sound that then became associated with the great John Coltrane Quartet of the early to mid 1960’s. The chords were supplied by pianist McCoy Tyner, who is synonymous with quartal harmony, and one of my all time favourite jazz pianists.
McCoy Tyner was using these voicings at a time when the Coltrane Quartet was playing a lot of modal jazz. Meaning that there weren’t lots of chord changes. And the emphasis was more on scalic improvisation over static harmony. So What is also a modal jazz piece. So, if you’re looking to apply some of these quartal chord voicings, then modal jazz tunes are a good place to start.
Quartal Harmony on Bass
The bass is setup for playing quartal chord voicings because the strings are tuned in intervals of a fourth. Which is why it amazes me that more bass players don’t use quartal chord voicings. Many of the chord voicings in the video can be played with just one finger. But despite this simplicity, they create a sophisticated jazz harmony sound.
Here is an A major scale harmonised in 4ths.
In the video, I’ve used the open A string as a root note underneath all of these voicings.
When you play this, it doesn’t sound like a typical major scale harmonisation. That’s what’s so great about quartal harmony. You can take simple harmony, like a major scale, and completely change it’s character, without needing to change or add any notes.
It works for all of the modes of the major scale. Here is the Dorian mode harmonised in 4ths.
Applying Quartal Harmony to Jazz
I’ve already mentioned that quartal chord voicings are extremely well suited to modal jazz. If, for example, you’re playing a modal jazz composition with long periods on a minor seventh chord. Like So What or John Coltrane’s Impressions. Then you’re faced with a challenge of how to make just one chord sound interesting.
One solution would be to apply the dorian chord voicings that I’ve written out in the example above. It gives you seven different options for voicings that you could play over a single minor seventh chord (Am7 in the example above). You could use any or all of these voicings to help create a feeling of movement in the otherwise static harmony.
You can apply quartal harmony to virtually any scale or mode. In this next example I’ve applied it to an A harmonic minor scale.
The same chord voicings can also be applied to any of the modes of the harmonic minor scale, which includes the altered scale.
One of the fourth intervals in the harmonic minor scale actually comes out as a major third. So, some of the voicings in the example above are not strictly quartal. Because they mix fourths with a third. But it still creates some interesting sounds and you can do your own experimenting to decide which of the voicings are useful.
John Coltrane Jazz Lick on Bass Guitar – Bass Practice Diary – 19th February 2019
This week I’m breaking down another jazz lick on bass guitar. And I wanted to take on one of the all time great jazz improvisers, John Coltrane.
So, I was reading through the bass clef John Coltrane Omnibook trying to choose where I should start. And I decided I should start by looking at how he played over what are know as the Coltrane Changes. Or the Coltrane Matrix as it was called when I was taught it at music college.
The Coltrane changes are a sequence of chords that take you through three keys. Each key is a major third away from the previous key. So, the progression always resolves back into the original key. Because an octave divides perfectly into three major thirds.
John Coltrane used this progression as a substitution for a standard II – V – I progression. Coltrane used this substitution in his composition Countdown from the Giant Steps album. The Countdown chord progression is a reharmonisation of the jazz standard Tune Up.
The Lick Arranged for Bass
So, I’ve arranged one of John Coltrane’s licks from Countdown for bass guitar. The lick takes place over three bars and encompasses all three key changes. It starts like this.
The first chord, Cm7, is chord II in the key of Bb major. If you’re going to analyse the first two notes in terms of their relationship to the chord then they would be 5th and 11th. But I feel like in this case, Coltrane was just using two notes from the key of Bb major to lead into the new key. Which is why I haven’t written 5th and 11th above the notes.
The Db7 chord is chord V in the new key, Gb major. From this point on, it’s really interesting to see how many chord tones John Coltrane uses in his line. So I’ve written the chord tone relationships above the notes. Here’s the second bar.
In this bar, the key changes from Gb major to D major (A7). You’ll notice that virtually every note he uses in this lick is either root, third, fifth, seventh or ninth. The only note that isn’t in this bar is the Ab passing note between the root and seventh of the A7 chord.
Using Chord Tones
His approach might seem quite simplistic on the face of it. It would certainly seem like a simplistic way of building lines if you were to apply it to the standard, unaltered II – V – I progression. But, if you look at it in context with the chord progression, it makes complete sense.
He’s using this incredibly cool substitution, which features constantly moving harmony. And he wants his line to reflect the substituted harmony. If he filled his line with chromatic alterations and extensions, then the underlying chord progression could quickly become unrecognisable. Here’s bar three.
In this bar the key returns to the original Bb major (F7). The pattern used on the Dmaj7 chord is very typical of the 1, 2, 3, 5 patterns that Coltrane loved to use around this period. Which is why I’ve put 2nd in brackets next to the 9th, E. Here is the full lick.
John Coltrane Improvisation Style
Analysing these licks is like getting a lesson in jazz improvisation from one of the masters. This lick is very typical off what John Coltrane was playing in the late 1950’s. But, during his career he went through several different stages. Each featuring a different approach to improvising. So I have no doubt that I will be analysing more Coltrane licks in the near future from different stages of his career.
Playing lines in 4th intervals is a very popular sound modern jazz. It’s a very distinctive sound. And once you’ve incorporated it into your playing, you’ll start to recognise when you hear other musicians using it. This video features an exercise that I’ve written to help you incorporate this sound in your playing.
There are two obvious ways to play 4ths on bass guitar. I believe that if you’re going to be able to come up with basslines in 4ths, then you need to practice and use both ways.
The first way is the easy way. You go from any fretted note to the same fret on an adjacent string. The bass is tuned in 4ths. So, as long as you stick to the same fret, you’ll be playing a 4th. This is very simple and you can apply this to playing scales and harmonies. Here is a G major scale played in intervals of a 4th.
This way of playing 4ths is so simple, that it can lead to some bass players ignoring the slightly more complicated way of playing 4ths. Which is by shifting position up five frets on a single string. Like this.
I think that this element of shifting position, is essential if you’re going to create musical lines in 4ths. If you only use the first, easier technique, then you’ll very quickly find that you’re stuck in one position on the bass neck. And as a result, it will massively limit your ability to come up with musical lines.
The 4ths Exercise
So I’ve written this exercise, which is designed to help you practice playing 4ths in both ways.
I’ve written it in the key of A major. But, if you want to master it, please practice it in any and every key. The concept is simple. It starts with a position shift from the A on the 5th fret of the E string to the D on the 10th fret. Then you play a 4th interval from the B on the 7th fret to the E on the 7th fret of the A string.
So it immediately uses both ways of playing 4ths. Then it repeats the same pattern all the way up the neck until you can’t go any further. And then you play everything the same way in reverse.
Once you’ve got used to playing lines in 4ths, start to listen to listen out for the sound of 4ths in other musicians lines. Listen to players like Evan Marien, he’s a brilliant bass player that loves the sound of 4ths in his basslines.