[anomarokarisu]

in blues, sometimes jazz musicians play natural 7 over dominant 7th chord.
Like this solo, look at first 2 measures, he plays B natural over C7, and natural E over F7.
how does this make sense? He plays C major scale for first 3 measures.
So, C major scale over C7, F Lydian over F7.
I have no idea how to explain this solo theoretically.

 

[jgreiner]

Not always does a blues progression go to the IV chord in the second measure. Yeah, there's an F7 written, but that doesn't mean in any way, shape or form the soloist has to play it that way for multiple reasons.
1. There are enough common tones in a C7 and F7 to harmonically get away with it.
2. A B natural could be considered a passing tone to C. It could also be explained as consonance/dissonance, which is a huge part of improvisation.
If soloists only stayed in the strict chord/scale "regimen", it would be boring as hell to listen to. Also notice in the first and second measures, the soloist clearly "states" the C and F triads (beats 3 and 4). It's not like they're completely ignoring the "rules" and going avant-garde. It's all about utilizing passing tones and as I previously mentioned, consonance/dissonance. You could also explain measure 6 being a tri-tone substitution (B7) for the F7.
Bottom line is there's a LOT going on with the soloist's brain in this short excerpt that is far beyond the I and IV chord of a basic blues. Lastly, measure 10 is a textbook example of a descending bebop scale.

 

[Pete Thomas]

in blues, sometimes jazz musicians play natural 7 over dominant 7th chord.

Not usually, unless it's a chromatic passing note as in a bebop scale or a mistake. A passing note would be as in F7: F E Eb (or could be used as part of an encolsure or neighbour note - but there should be that kind of context, not just a general "play natural 7 over a dominant chord")

Like this solo, look at first 2 measures, he plays B natural over C7, and natural E over F7.

Are you sure that's a solo? I mean it looks (and sounds) more like an etude or technical study than a solo improvised by an actual real live jazz musician.

So, C major scale over C7, F Lydian over F7.

It's all just C major in those first few bars - albeit used very strangely. Forget lydian - it just complicates things.

Another way to analyse this is to call them wrong notes. We don't need a theoretical or rational explanation for everything.

 

[jazzman1945]

If used the principle of Occam's razor, then erroneous lack of signs of alterations, except in C7.

 

[whaler]

Throw that in the garbage and start transcribing.
Don’t bother with the buttload of online teaching every out of work jackass teacher has on Facebook now.

 

[Saxydude]

It's the natural 14. Super hip alteration.

Kidding. It's probably a wrong note in what is obviously an etude prepared by someone who doesn't really know what s/he is doing. It looks like the etude is trying to emphasize the common 1-2-3-5 pattern through a blues.

There are better free resources to help your improv. journey.

 

[JL]

I'm in total agreement with Pete, Whaler, and Saxydude. You are right to question this.

However, as Pete suggested, it sounds fine to play that maj7th note on a dominant chord as a passing tone, on an upbeat. Like in the 'bebop scale' or scale fragment. Just be sure to place it on the upbeat.

But I'm not sure I'd play a blues like that notated exercise. My neck gets sore trying to read it sideways. I wonder why are so many attachments/photos coming up sideways on here recently??

 

[BH9]

You could see the B natural and D as an enclosure around the C. The 2nd bar though, that should be Bb. Hard to go further because it keeps flipping...

 

[nvilletele]

Fixed the pic orientation

Anomarokarisu: Is this the origin of your screen name, かな？
アノマロカリス Anomalocaris
古生代カンブリア紀の海生肉食動物。節足動物の一種と考えられている。体長は60センチメートル 程度で当時最大とされる。

 

[JL]

anomarokarisu, if you look at measure 5, the E on the F7 chord works fine because the descending line from the A to the Eb (in the following measure) is a fragment of the F bebop scale and the E falls on an upbeat. So in that case it sounds good.

If you're unsure of what a bebop scale is, look it up.

 

[anomarokarisu]

Thanks for fixing the picture! I didnt know how to fix this. Yes! Its one of my favorite animal! Thanks for write it in Japanese!

 

[anomarokarisu]

Thank you for replying my question.
Sorry it's very difficult to reply all your kind replies, because this is my first time to use thread and English is difficult for me. So, I apologize to reply to thread.
Just like Pete says, It is an etude! That's why it made me confused because I thought the author put B natural intentionally. Besides that, bar 4, he put Bb as an accidental.(sorry I didnt included in this picture because I thought I will abuse copyright if I show whole sheet.) I thought it is a mistake, but I was not sure. Thats why I asked. I read all answers, and now I understand that almost all your analyzes, (like bebop scale, enclosure, or passing note...) which made me amazed. But more importantly, I was too picky about whats going on in music. I need more experience of transcribing and playing to feel music from my heart. Thanks for taking time to answer my question. Everyone helped me a lot. And hope you all safe from covid-19.

 

[Jazzoetry]

Many good players after learning theory also use their ear, and sometimes they hear and play different things that are just spontaneous feelings based on sound. Then transcribers look for the theory, but maybe the idea was played based on a spontaneous feeling, or even a note or notes that are followed by a theoretical resolution. Just wanted to add to the thoughts...Stay Safe.

 

[nvilletele]

Thanks for fixing the picture! I didnt know how to fix this. Yes! Its one of my favorite animal! Thanks for write it in Japanese!

もちろん日本語で書く、でもその部分は私の書いたものではない。Internetからコピーしたものです。あなたの名前を見ったら、日本人じゃないかと思いました。