Sunday, April 12, 2026

GHIRLANDAIO ... portrait of a woman who wasn't there ...















Portrait of Giovanna degli Albizzi Tornabuoni

1489 - 1490
Mixed media on panel. 
77 x 49 cm
Museo Nacional Thyssen-Bornemisza, Madrid
Inv. no. 
158
 (
1935.6
)



... this portrait was commissioned shortly after the subject's death during childbirth  ...


the museum notes are copied below ... now read on ...


This superb panel is a fine example of fifteenth-century Florentine portraiture. Artists of the time followed classical dictates: body proportions were idealised while faces left devoid of expression were expected to convey character. In this half-length portrait, the sitter appears in strict profile, with her arms bent and her hands clasped together. In the background, a selection of personal belongings appears within a simple architectural frame. The cartellino to the right bears part of an epigram by Martial and the date of his death in Roman numerals. The model has been identified as Giovanna Tornabuoni on the basis of a medallion by Niccolò Fiorentino showing her likeness and her name. She is also portrayed full length in the Visitation fresco painted by Ghirlandaio for the Tornabuoni chapel in the church of Santa Maria Novella (Florence).

Ghirlandaio began his career as a goldsmith. According to Vasari: “from the habit of constantly drawing, [he] acquired great agility, skill and deftness, so that many say that while he was slow as a goldsmith, when he painted the country people or anyone who passed through his studio he immediately captured their likeness”. Vasari also noted that, “this is demonstrated by innumerable portraits by his hand in which one sees a remarkable lifelikeness”. We find further references by Vasari in his text to Ghirlandaio’s skill in this pictorial genre.

Giovanna Tornabuoni is one of the most appealing and fascinating portraits in the Thyssen-Bornemisza collection. This beautiful image is set against a background with a niche containing various objects referring to the sitter’s refined tastes and character. The jewel with the dragon, two pearls and a ruby, which forms a set with the pendent hanging from a silk cord around her neck, refers to her public life. This dragon brooch is balanced on the other side by the prayer book and string of coral beads that has been identified as a rosary, both of which emphasise her piety and her inner life. In between them is a cartellino with part of an epigram by Martial (XXXII) entitled To a Portrait of Antonius Primus and the date underneath. It reads: “Art, if only you could reproduce the character and the spirit. There would be no finer portrait in the world”.

This image is a classic example of the Florentine Quattrocento portrait in which the sitter poses upright, in strict profile and bustlength with the arms in repose and the hands joined. In the face and body the features and proportions are idealised. In the present example, this is evident both in the lines that create the slender neck and shape of the body and in the expressionless and perfect features. As in other portraits of this period, the ideal beauty used to depict Giovanna Tornabuoni is based on theoretical principles and examples taken from classical antiquity, which artists of this date then combined with the individual features of the particular sitter.

The sitter’s identity was established through medals of her, such as the one attributed to the engraver Niccoló Fiorentino in the National Gallery of Art, Washington, in which Giovanna is depicted in profile with a jewel around her neck and an inscription with her name. The medal was possibly commissioned in connection with her marriage. Ghirlandaio also depicted her in one of the frescoes in the series executed in the chancel of Santa Maria Novella, commissioned by Giovanna’s father-in-law and painted by Ghirlandaio between 1486 and 1490. In these frescoes Giovanna occupies an important position in the episode of The Visitation. Placed to the right of the composition, she is at the head of a line of three figures. Although depicted full-length, her pose, dress and accessories are the same as in the present panel.

Giovanna degli Albizzi, born on 18 December 1468, married Lorenzo Tornabuoni on 15 June 1486. She died two years later, on 7 October 1488, during childbirth. For Jan Lauts the present portrait is prior to the fresco in Santa Maria Novella and may have been the modello for that work. John Pope-Hennessy, however, considered it to be later than the fresco and to be a posthumous portrait in which the date on the cartellino is that of Giovanna’s death. The painting, which was among the possessions of the Tornabuoni family in their palace in Florence, came into the ownership of the Pandolfini family in the 17th century. Later it was in the collection of baron Achille Seillière and the princess Sagan. In 1878 it is recorded in Brighton in the collection of Henry Willet, from where it passed to that of Rodolphe Kann. Acquired by J. Pierpoint Morgan in 1907 it entered the Thyssen-Bornemisza collection from the Morgan Library, New York, in 1935.While it was in the Pierpont Morgan Library an old photograph of the West Room taken prior to 1913 shows the panel in its present frame, displayed on an easel on one side of the room surrounded by other works from the collection.

Mar Borobia


you can examine the gigapixel image in microscopic detail here ...

https://www.museothyssen.org/en/conectathyssen/gigathyssen/portrait-giovanna-degli-albizzi-tornabuoni







 




















Tuesday, April 7, 2026

Saccade ... fast movements of the eye as our focus quite naturally jumps from one point to another ...










Saccades are NORMAL ... but we sometimes perceive them as GLITCHES ... Doctor Andrew G. Lee explains how the brain succeeds and fails to track rapid movements of objects in our visual field by succeeding or failing to accommodate the natural twitch in our focussed attention 


This experience is given an extra complication because the retina of the eye has a small blind spot quite close to the fovea, which is the part of the retina that sees things in extra fine detail when we are focussing.


Even after millions of years of evolution, the highly evolved brain cannot instantly respond to sudden changes ... there are always a few milliseconds of delayed reflex.


I experience this phenomenon every day in two contexts ...


ONE ... Watching a tiny tablet of sweetex dropping the short distance from the dispenser into a cup ... and seeing it twice as if in different positions rather than perceiving a smooth trajectory


and 


TWO ... If I am painting, trying to follow a fine line with the fine tip of a sable paint brush ... and involuntarily allowing the hand that guides the brush to twitch as the eye re-adjusts its focus


https://en.wikipedia.org/wiki/Saccade


In the last few days I've been asking myself why my hand won't follow a smoothly drawn line ... I'm beginning to think that serious painters and calligraphers sometimes have to unlearn and re-program the involuntary processes that the mind might normally undertake.


Doctor Lee's excellent video is here on YouTube ...

https://www.youtube.com/watch?v=iIyEFTU3zOs


The next big question is ... how do surgeons cope ? ... or is this a trait that would disqualify someone from surgical practice ?


I asked ChatGPT about this problem and got a useful perspective ...



sccades ... are there any tricks that people who do very fine work, such as fine artists, or surgeons, can use to overcome the natural jerking movement of the eye ?

What you’re noticing is very real. The eyes don’t move smoothly most of the time. Instead, they make rapid jumps called Saccades, with brief stable periods in between called fixations. This creates a kind of “micro-jerkiness” in visual sampling that, at first glance, seems incompatible with extremely precise work.

Yet people like surgeons, watchmakers, and fine artists don’t eliminate this system. They learn to work with it, and in some cases, subtly train around its limits.

How experts deal with it

1. They rely on fixations, not motion
Precision happens during the still moments between saccades. Skilled practitioners naturally time their actions to coincide with these stable windows. For example, a surgeon placing a stitch or an artist drawing a fine line is effectively acting during a fixation, even if they aren’t consciously aware of it.

2. They slow down and segment tasks
Rather than trying to execute a long continuous motion under visual control, experts break actions into tiny chunks. Each micro-step is guided by a fresh fixation. This reduces the impact of the eye’s jumpy scanning.

3. They use “quiet eye” training
In fields like surgery and elite sports, researchers talk about the “quiet eye” phenomenon, where a person holds their gaze steadily on a critical point for slightly longer than average before acting. This improves accuracy and coordination. It’s not that saccades disappear, but their timing becomes more controlled.

4. They offload precision to the hands and tools
With practice, fine motor control becomes partly independent of continuous visual correction. Surgeons develop highly refined proprioception, and artists build muscle memory for strokes. Tools also help. Magnification systems, stabilizing rests, and robotic assistance all reduce reliance on rapid visual updates.

5. They control head and body movement
Minimizing larger sources of motion (like head sway or hand tremor) makes the small discontinuities of eye movement less disruptive. Many fine workers adopt very stable postures or brace their hands.

6. They use magnification and lighting strategically
Magnification doesn’t remove saccades, but it increases the amount of detail captured during each fixation. Better lighting reduces the need for frequent eye repositioning.

A subtle but important point

Your brain actively suppresses visual perception during saccades, a phenomenon known as Saccadic suppression. So you don’t actually see the blur or jump. Instead, your perception feels stable, stitched together from those fixation snapshots.

Experts are, in a sense, masters of this stitching process. They don’t fight the biology. They align their actions with it.

If you wanted to practice this yourself

People often improve fine visual precision by:

  • consciously pausing their gaze before acting

  • working slightly slower than feels natural

  • using reference points instead of continuous tracking

  • practicing under magnification (even simple reading glasses can help)

Over time, this builds a rhythm: look → stabilize → act → repeat.

It’s less about eliminating the “jerkiness” and more about learning the timing hidden inside it.




Of course, there is more to it ... the different sections of the human brain that process the perception of movement and the fine focussing functions ... are not simple !

https://www.youtube.com/watch?v=-gbMVjD3Bsw

https://www.youtube.com/watch?v=HBlRrUf29RE






Monday, March 23, 2026

Prince Buster's Ghost Dance ... in draft

i didn't properly know what Ghost Dance was about, yet i've loved the delicate musicality of this track for DECADES ... so I looked it up at last ... and with a better understanding, so that tears soon came to my eyes ... prince buster's charm and delicacy as he addresses the ghosts of lost friends are in complete contrast to the roaring swashbuckling humour of his dance hall songs ... instead he shows his abiding sense of brotherhood ... how badly we miss our friends, and how badly we come to miss even those we never properly knew ... in my view it is as when old paintings fade and the colours bleach out, and then their varnish darkens ... i suppose these momentary tears might wash some of those dusty memories clean and bright again ... possibly, maybe ?













Ghost Dance lyrics with English Translations


Ghost dance
Dear Keithus, my friend, good dayHoping you're keeping the best of health
How is the music down there in bone yard?I hear that Busby have a sound systemAnd that Nyah Keith is disc-jockeyBut them can't get no Red Stripe beerFi sell in the dance at night
Tell Zacky, the High PriestWho used to lead the toughestOne who could go, baah toughestGive him my regardsTell him Prince Buster says hello

Baah, toughest
And Keith, if you should see RashiYou know Rashi from Back'o'Wall?Give him my regards
And if you should see, the two brothersStinky Pommells and Herbman, we grew togetherTell them Prince Buster says, so long,Sorry they had to go so soon
Since music be the food of love, I'll forever sing onAnd Forresters Hall, we'll soon get back on shape
Baah, toughest
Ghost danceGhost dance
Baah, toughest