Sunday, 29 June 2014

Week 23 27-06-14 The Sweet Yakity Waltz

This is another piece chosen by me. I found it in the library of the Sussex Jazz Orchestra. Ian Hamer used to work with Kenny Wheeler and acquired a number of his big band scores for the SJO (thanks to Patrick for archiving all this material). And Steve (Lawless) kindly put the Dave Holland version in the Dropbox.

Like many of Kenny Wheeler's compositions it has a simple melody (highly motivic - each phrase sits clearly in its own key centre) and a complex chord structure (often non-functional harmony).

Both the Dave Holland version and Kenny Wheeler's big band score present the melody with a single instrument playing freely, out of time ('colla voce'). The tempo is established in the last few bars of the melody statement. This can be an interesting way to start a piece. The individual playing the melody takes responsibility for setting the tempo (no one needs to do a count in). I invited some of you to do this in the session. Why not try this approach in your own group with a piece you already know well (a standard perhaps?) Check out the attached mp3 clip of Carl Fontana playing Soon - same idea, different style.

Rhythm and comping - this piece is a jazz waltz and is intended to go quite fast. During our session I encouraged our rhythm section to explore playing '1 in a bar' (= dotted minims), '2 in a bar' (= dotted crotchets), as well as walking '3 in bar' (= crotchets). I also suggested a more percussive approach to playing the chords to help the time and feel. Simplifying the sequence by missing some chords out would be possible but risky, the sequence could easily lose its shape. Stuart suggested playing simpler voicings (leaving out some of the tension notes) - more on voicings below.

Improvising -  the task of improvising over this chord sequence is challenging. There are times for 'jumping in' and 'having a go' (particularly if it's on a gig and you have no other choice!) but at other times you may wish to take a more organised approach. If so, you should consider all the elements that make the task challenging:

1 the time signature is 3/4 (which may be less familiar than 4/4) -  try playing on the chord sequence in 4/4

2 the tempo is quite fast - try playing at a slower tempo

3 the harmonic rhythm is quite fast (ie chords change each bar) - make the chords last longer (2 or even 4 bars per chord)

4 some of the chords may be unfamiliar (or there may be an usual scale you wish to explore) - work on just the one chord or scale, perhaps playing out of time to begin with

5 some sequences of chords may be unfamiliar - improvise on shorter sections, perhaps as a loop (as we did in our session on the first 2 bars of this piece)

Harmony and melody - these elements are seamlessly combined in this piece but to create new melodies over such a complex chord sequence is a challenge. Harmony is a vertical element, melody is a horizontal element. 'Ear players' work horizontally, trying to create good melodic lines (sometimes at the expense of chordal detail). Chordal players (piano, guitar etc) have to think vertically in order to create voicings. Finding good voicings for a piece like this is very important.

A voicing for a chord is usually created using the chord tones (root, third, fifth, seven) plus tension notes (eg ninth, eleventh, thirteenth). Tension notes may be specified or implied by the chord symbol, or they may be chosen in addition to the notated information just because 'they sound good'. A chord voicing does not usually have all the chord tones and all the tension notes as it sounds too dense (a seven note voicing will sound very thick). It is common to leave some notes out. Generally the third and seventh need to be included (but not always!)

Another way of creating a voicing is to work from a scale (usually seven notes) which must be chosen for the given chord. There are many factors which may determine this choice - the melody, the prevailing key centre, surrounding chords, style of the composition, style of the composer, and the final arbiter should be your ear. More on this another week ...

Some scales contain notes which are not always suitable for voicings. The scale of C major ( C D E F G A B C ) might be chosen for the chord C∆. Any notes from the scale could be used to make a voicing but the fourth note (F ) can make the chord sound 'wrong' (or not like C∆ ). Such notes are called 'avoid' notes (I prefer to call them 'be careful' notes). They are fine when used melodically but may be unsuitable when used harmonically.

The major scale and many of its modes contain 'avoid' notes (although jazz theoreticians hotly dispute some of them!) More on this another month …

By contrast, in the melodic minor and all of its modes there are no 'avoid' notes. These means any notes from these scales can be used to create voicings.

Kenny Wheeler often uses melodic minor harmony in his compositions as well as other scale sources.

Below is my own scale analysis of the chords in The Sweet Yakity Waltz. Where there are a number of choices I have tried to offer the most likely or stylistically appropriate.

The attached pdfs called "SYW Voicings" (in C, Bb and Eb) have typical voicings for these chords and they are all derived from the scale choices below.

SCALE ANALYSIS of The Sweet Yakity Waltz
bar1 Gm∆ G melodic minor

bar2 Em7b5 E locrian natural2 (6th mode of G melodic minor)

bar3 Fm9/Bb Bb mixolydian (5th mode of Eb major)

bar4 A7#5b9 A altered (7th mode of Bb melodic minor)

bar5 Dm13 D dorian (2nd mode of C major)

bar6 Bm11 B dorian (2nd mode of A major)

bar7 Am∆ A melodic minor

bar8 Am9/G A dorian (2nd mode of G major)
(I've ignored bass note in this context)

bar9 F#m7b5 F# locrian natural2 (6th mode of A melodic minor)

bar10 F∆#11 F lydian (4th mode of C major)

bar11 Em∆#11 E melodic minor #4 (4th mode of B harmonic major*)
(or E lydian b3!)

bar12 Dm11 D dorian (2nd mode of C major)


Why not have a go on your own at the remaining bars? Or sit back and enjoy a nice glass of wine like I'm doing right now . . .


* B harmonic major is  B  C#  D#  E  F#  G  A#  B

      fifth mode is  E  F#  G  A#  B  C#  D#  E


The harmonic major is constructed as follows:  1  2  3  4  5  b6  7  8   (ie major scale with a flat six). Like the other 'parent' scales (namely: major, melodic minor and harmonic minor) the harmonic major has a further 6 modes. So, we now have four parent scales which form a symmetric pattern (or paradigm) - check out the third and sixth of each scale.

                          major (3  6) | melodic minor   (b3  6)         
                  harmonic major (3 b6) | harmonic minor (b3 b6)

This gives us a grand total of 28 scales (4 x 7). All of these scales contain 7 notes and while some have 2 and others 3 semitone intervals, these are always separated by larger intervals (ie 2 semitones never occur next to each other within a scale). The matter of the semitones is particular significant when creating voicings. More on this in another lifetime ...

Saturday, 14 June 2014

Week 21 13-06-14 Armando's Rhumba

Just before we started this session Charlie was talking to me about some of these traditional rhythms. I had lots of questions for him ...

Q: When is a rhumba not a rhumba? A: When it's a bolero (Charlie described the groove he was playing on Armando's Rhumba as a bolero).

Q: What happens when you play a bolero rhythm speeded up? A: It turns into a merengue.

I pulled the following snippets off wikipedia - I shall expect you all to write an essay (no more than 10,000 words) on this topic!

Rumba is a family of percussive rhythms, song and ballroom dance that originated in Cuba as a combination of various musical traditions. The name derives from the Cuban Spanish word rumbo which means "party" or "spree". The term spread in the 1930s and 1940s to the faster popular music of Cuba (the "Peanut Vendor" was a classic), where it was used as a catch-all term, rather like salsa today. Also, the term is used in the international Latin-American dance syllabus, but in reference to a slower dance based on the bolero-son. Ballroom rumba, or rhumba, is essentially son as opposed to the older folkloric rumba.

Bolero is a genre of slow-tempo Latin music and its associated dance. There are Spanish and Cuban forms which are both significant and which have separate origins.

Merengue is a type of music and dance originating in the Dominican Republic which has become one of the most popular genres throughout Latin America and major cities in the United States.[2] The etymology of its name is much disputed. It may derive from the French dessert meringue, but it is also likely to be related to similar West African words related to dance and music.

I had better leave this subject area for now before it all turns into an Eton Mess ...


Rhythm:

Listening to some of the many recordings of this piece, they all have a strong '2 feel' (even the slower versions). I think the piece works pretty well at a more modest tempo.

The groove Charlie played (bolero as discussed above) sounded great to me and I thought together with Stuart and Terry we had an extremely cohesive rhythm section.

The melody exploits a mixture of even quavers and crotchet triplets. The rhythm in bars 3 and 4 is particularly challenging.


Harmony:

The harmony in this piece is all highly functional (and possibly quite 'classical'?)

Lots of  V7  Imin  cadences. As we discussed, the V7  chords typically work well with a flat9  ( V7b9 ).

Bars 9 - 14 offer pairs of chords rising in tones  (in concert  C7  Fm  |  D7  Gm  |  E7  Am  ).

By using the third on each of the dominant chords a chromatically rising bass line is created (in concert  C7/E  Fm  |  D7/F#  Gm  |  E7/G#  Am  ).

Bars 15-16 takes us to the relative major (concert Eb ) but the chord has the fifth in the bass (in classical terminology this is called a 2nd inversion).

Bars 17-18 remain on the same bass note as 15-16 (concert Bb ) so we have a pedal point for 4 bars.

This chord has various names (in concert  Abm/Bb or Bb7b9sus4 ). It is functioning here as chord V in the relative major (which is logical in view of the following information).

Bar 18 last two chords - my lead sheet was based largely on the printed Real Book version and I should have noticed their notated chords were wrong (or at least at odds with both the Dropbox recordings). Top marks to Stuart for correctly identifying these chords, in concert  Bb13b9  Eb , or the tritone option E7#9  Eb .

For a more detailed look at these two chords see my separate sheet "final cadence examples".



Improvising:

This sequence offers lots of opportunities for creating guide tone lines (often chromatic, going up or down).

The opening 8 bars may also lend themselves to blues scale (in concert C blues) - I forgot to mention this in our session.

We practised the chords in bars 9-14 (also discussed above) by playing simple arpeggios up and down the chords (NB on dominants 3rd 5th b7th b9th and then on minors 5th b3rd root )

I usually try to avoid undue discussion about scale choices on tunes like this. However, I will mention that all the V7b9  chords in this piece (bars 2, 3, 5, 6, 9, 11, 13 ) could take mixolydian b9b13 (harmonic minor starting on fifth - see my notes from Week 20 for more on this).

The chord in bar 17 would usually take phrygian (from the bass note: in concert  Bb  Cb  Db  Eb  F  Gb  Ab  Bb ). More on this subject another time - remind me!

Enjoy the weekend (and indeed the following week … )

Cheers Mark x