Diminished Scale Exercise for Jazz Lines – Bass Practice Diary – 6th August 2019
Recently I’ve been practicing lots of symmetrical exercises. And this week I’ve featured a diminished scale exercise that I came up with this week. A few weeks ago I featured an exercise that involved harmonising the whole tone scale into augmented triads. A symmetrical exercise can be anything with a limited number of transpositions. In practice that usually means using patterns of repeating intervals. They have a vey unique sound that you won’t achieve just by using major and minor scales and their modes.
The Diminished Scale in Jazz
I’ve spoken a bit in the past about the diminished scale in jazz. The diminished scale is probably the most versatile symmetrical scale. The most obvious time to use it would be over a diminished chord, but that isn’t the most common place it gets used in jazz. The most common use of diminished scales in jazz is on dominant 7th chords. And I’ve used dominant 7th chords as the backing for the exercise in the video. The chords go around in a cycle of 5ths like the middle 8 section of the Rhythm Changes chord progression (D7, G7, C7, F7).
Let me explain how and why diminished scales work on dominant chords. I’ll use C7 as an example and I’m going to start my scale on the root note C. The first intervals in the scale will be a semi-tone and then a tone. So, the first three notes are C(root), Db(b9) and D#(#9). These same intervals will then repeat through the octave creating a scale with eight notes in it, C-Db-D#-E-F#-G-A-Bb.
The interval pattern this creates is an interesting mix of inside and outside notes when played on a C7 chord. The b9 and #9 are both outside notes, and both common alterations on dominant 7th chords. The C, E, G and Bb are the chord tones, root, 3rd, 5th and 7th. And the A is the 13th, which is a chord extension but an inside note. The F# is a #11th, which is another common altered chord extension.
The Diminished Scale Exercise
The exercise I came up with in the video is just an idea to help you improvise lines using the diminished scale. It’s slightly different ascending and descending as I referred to in the video. Here is the exercise as I played it in the video.
Jaco Pastorius Fingerstyle Funk Lines – Bass Practice Diary – 2nd July 2019
This week I’ve been practicing playing Jaco style fingerstyle funk lines by using a book of his transcriptions called The Essential Jaco Pastorius. I particularly wanted to study the way he improvises funky fingerstyle bass lines. Which is why I read through this passage. It’s played on a Bb7 chord towards the end of his composition Opus Pocus from his self titled debut album. I haven’t included any TAB this time because I don’t want to infringe the copyright of the book. But if you’d like to see some analysis of a Jaco line with bass TAB then check out this video.
Practising with transcriptions
If you’ve followed my Bass Practice Diary regularly you will probably know by now that I love to practice playing transcriptions of great musicians. Sometimes I transcribe the music myself and sometimes, like this week, I work from books of transcriptions. I truly believe that practicing transcriptions is one of the best ways you can practice the bass or any other instrument. Playing a Jaco Pastorius transcription is like getting a lesson from the master himself. What better way is there to get inside his brilliant mind than by playing his own lines.
I’ve often found that great musicians are often not great teachers. Jaco is probably a good example of this phenomena. Most of you are probably familiar with his Modern Electric Bass instructional video from the 1980’s. There is some good stuff in it. But I would say that you will learn much more by transcribing his music than by listening to what he says. Jaco is a very natural musician. And I’ve noticed that most natural musicians don’t make the best teachers. Because they often can’t explain what it is they do in a way that people can understand. There are exceptions to that. Victor Wooten is both a great natural musician and a great teacher. Because he’s taken the time to break down what he does and distill it in an understandable way.
Whatever great musician you want to learn from, you can have a one to one lesson from a master, when you start transcribing their music. Or, for a little bit more money, you can buy a transcription book. Which now exist for many great musicians on a wide variety of instruments and styles.
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!
Jaco Pastorius Jazz Lick – Bass Practice Diary – 5th February 2019
This week I’m featuring a lick from Jaco Pastorius’ solo on (Used to be a) Cha Cha from his debut album. It’s one of my favourite Jaco solo’s because it contains incredible melodic jazz lines like the one I’ve featured in the video. Here’s the lick!
Several things stand out to me about this lick. It’s very fast, it takes place over moving harmony, Eb major to D minor and it includes an odd meter bar. I don’t know for sure that he improvised the line, but I believe that he did. And to improvise a line at that speed over moving harmony and an odd meter bar is extraordinary. That solo is one of many moments from that album that really underline why Jaco was such a genius and why his legacy has been so long lasting on the bass guitar.
Chord Extensions on 4, 5 & 6 String Bass Guitars – Bass Practice Diary – 25th September 2018
I’ve done a few videos in the past about playing chords on the bass. This week I’m demonstrating a fairly simple approach you can use to playing jazz chord extensions. The system involves using two different voicings of 7th chords. Each using three notes, root, 3rd and 7th. Then adding chord extensions like 9ths, 11ths and 13ths as well as common alterations.
A Very Quick Guide to Jazz Harmony – 7th Chords
Chord extensions and alterations are synonymous with jazz harmony. 7th chords form the foundation of most jazz chords and I’m going to look at the three most common types of 7th chord. They are Major 7th, Minor 7th and Dominant 7th.
7th chords are four note chords, all of the chord types mentioned above contain root, 3rd, 5th and 7th. The root and 5th are the same in all three chord types, so the 7th chords are defined by the thirds and sevenths. Major 7th chords have a major 3rds and 7ths. Minor 7th chords have minor 3rds and 7ths and dominant 7th chords have major thirds and minor 7ths.
There are other types of 7th chords, but in this post I’m only going to look at these three types because they’re the most common.
When voicing extended chords it’s extremely important to know which notes to leave out. Regardless of whether you play 4, 5 or 6 string basses, you only have a finite number of strings. I recommend that you don’t try to cram every note from an extended chord into a chord voicing. It’s rarely a useful or practical approach.
The first note to leave out is the 5th, because it’s the same in each chord type. It doesn’t tell you anything about the chord. So, when I voice 7th chords, I voice them as three note chords, root, 3rd and 7th.
Assuming that you keep the root as the lowest note, that means you can voice a 7th chord in two different ways. The first way is with the 7th on top, as demonstrated in the three diagrams below.
The reason that I’ve voiced these chords on the 2nd, 3rd and 4th strings is so that I can use the first string to add a chord extension. These voicings work well for 9th chords. The 9th above my root note A is the note B played on the 16th fret of the first string. You can add this note to each of the chord types and you get these chord voicings.
There are two alterations you can make to the 9th in the dominant 9th chord. You can sharpen it to make an A7#9 chord or you can flatten it to make an A7b9 chord.
Voicing 7th Chords With the Third on Top
I stated previously that there were two ways I was going to voice the 7th chords. The first was with the 7th on top. Now I’m going to make the 3rd the highest note. I’ll play the root and 7th in the same place, but I’ll move the third up an octave, from the third string onto the first string.
In these voicings the 3rd string is not being used. So I can add a chord extension to the 3rd string. An obvious one to use is an 11th, because it sits comfortably in these chord shapes.
The natural 11th sounds good in a minor 7th chord. But, it doesn’t work so well on chords with major 3rds. So, for the major 7th chord I’ll add a sharpened 11th, which creates a lydian sound.
The sharpened 11th also works well on the dominant and minor 7th chords, and in these cases the sharpened 11th can also be described as a flattened 5th. So, I can create four new voicings by adding either a sharp or natural 11th to the 3rd string.
Chord Voicings for 5 String and 6 String Bass
All the voicings I’ve played so far can be played on 4 string bass. However, more strings means more potential chord voicings so I’m going to look at some voicings that will only work on 5 and 6 string basses.
First I’m going to take a couple of the 11th chords from the previous examples, and move the 11th up one octave. So, in the following voicings the 11th is the top note above the 3rd.
Finally I’m going to look at some voicings for 13th chords. The 13th is basically the same as a major 6th which is a note that can work on major, minor and dominant chords.
The voicings below are all dominant 13th chords. In each voicing the 13th is played as the highest note on the 1st string. It can be altered by flattening it as I’ve done in the second voicing. And, it can also be combined with the 9th, as I’ve done in the final voicing.
One big benefit of playing chord voicings on a 6 string bass is that you can play multiple chord extensions as I have in the final A13 voicing.