Still a long way from figuring it out, but the research continues! The Role of Temporal Fluctuations for the Swing Feel in Jazz Music
So, not only will practicing with a metronome NOT kill your swing feel, it'll actually make you more swinging. It's always nice to know that science™ supports my biased assumptions!
The flaws in that study IMO were - all three version were manipulated. They didn’t provide a control (ie the original unadulterated version). - if the bass/drums were on the beat, then the quantised version would sound more “in sync” with the backing track, biasing that sample group.
Rather than manipulating the "microtiming" of a piece, why not have listeners rate the "swingfulness" of several pieces and then analyze how each piece deviated from exact quantization? Of course, all this brings to mind Elmer Fudd in a white coat, with a magnifying glass. There are infinite variations to swing, and each brings something different to the ear and hips.
Daniel Humair spent years studying this and putting swing into equations. He wrote books about it too.
I may be wrong(as usual) but I’d say simple note selection has some influence on how “hard” something swings...not to mention what, when and how every musician on stage is playing and how that all interacts. This is way more complex than tempo, IMO.
- in the same tune - the same section - the same measure/phrase - among multiple players - between any two players at the same time i like the use of the term "microtiming" but to micro-time with scientific/mathematical precision to 'test' anything related to swing = bogus. YMMV. it ain't got that swing if it's got that scientific thing!
One thing that even the most advanced scientific knowledge has never managed to do: Remove the mystery from life. That's equally true of musical expression. No amount of scientific investigation can remove the mystery from that. Still, no harm in advancing the frontiers of knowledge, I think.
This way of thinking about it is basically trying pull fried eggs out of french toast. It doesn't work like that. It is about the core recipe! You have to work from a two-dimensional basis of 3 and 4 at the same time - not 3 over 4 - 3 and 4 equally. When you can fluidly move between 3, 4, 6, 12 ect. in a walking line as well perceive the 3, 6, 12 while playing 4 quarter notes you are part of the way there. After that you need to play with other musicians who swing.
Skilled soloists use back phrasing, so they may intentionally push or pull time to emphasize the swing feel. Also swing feel is not fixed from song to song. Some songs have a loose swing feel that is pretty much straight triplet 8th notes, and some are really tight; almost like a double dotted 1/4 and 16th note. The other aspect that gets wadded up with swing feel is "the pocket." If the feel has a wide pocket and the swing is super relaxed, most bands can't hold time in one place. I have played Freckle Face with several really good bands and most of them have struggled to not drag. The common problem is people seem to think they simply need to play behind the beat, but that's not quite right. There has to be a certain rhythmic tension (the pocket), and the swing feel also has to have a certain tension. Perhaps some back phrasing is required as well, as you have to make up time somewhere. What I have typically seen happen is the saxes in the soli get progressively further behind the beat, and this either drags time down or everything falls apart. ...and it's sounds like such a simple tune.
Not to say that I disagree, but scientific analysis is...analysis. It means breaking things down into parts to understand the data. Again, I don't think that scientists can come up with a formula for swing, but the data and analysis can give some insight into how swing works as a performance phenomenon, without necessarily giving an understanding of HOW IT'S DONE.
I’m not on sure ground here, but I believe that there are many different ways to swing. The elements that made Louis Armstrong swing can be very different from what made Coltrane swing, and different from what makes Maria Grande swing. It also seems to me that swing is somewhat of a subjective judgement. You and I may agree that a given performance swings hard, or we may not. Given that, it seems that once a specific performance is identified as swinging by someone(s), it is then possible to describe characteristics of that performance that might contribute to that - the drummer played right on the beat while the bass pushed it, or whatever. And that might be useful information when comparing different kinds of swinging performances, at least intellectually. But no description will ever be as wonderful as listening to Art Blakey dig into a shuffle.
Technology, and via that, science, can in a very focused study analyze how swing was done in certain discrete samples. That might help some people who want to do it. But because there are so many variations and because a part of the equation is emotional response, science cannot analyze how swing has always been done, nor really can it explain how to do it. As has been mentioned, the best way to learn how to swing is to do it with people who know how. Swing is very contagious. Edit: For me, often the more important question is how to not swing.
What I get from that study is that a "regular" timing (no matter if before or after the beat) is felt more swinging than others, and it's not hard to trust for me
reviving this thread... I think we need to consider many elements: time, note choice, accents, note length, emotion, but also subdivision...which I just so happen to touch on here: