Laying out the pins on the neck of the harp

In 2011, Michael Billinge wrote an interesting observation on the layout of the tuning pins on the neck of the Downhill harp. Talking about the way the tuning pins become more spread along the cheek band, as the angle of the neck becomes higher in the bass, he writes: “instead of an even change across the range, as might normally be expected, he seems to have done this in a series of blocks or groupings”

In his footnote, Billinge gives a list of the gaps between adjacent pins, and the way that they increase in steps. My chart below gives a visual representation of his data:

Pins spacing on the neck of the Downhill harp (mm) (data from Michael Billinge)

What made me think of this was that I was doing the same work this week on the Carolan harp. I tagged points on the laser-scan corresponding to the cheek-band holes in the left side (string side) cheek band, and then calculated the distance between each one. Plotting a graph of these distances showed clear groups of similarly-sized spaces.

Tuning pin spacing on the neck of the Carolan harp (mm)

Billinge does not say what the error margin on his measurements are, and so it is difficult to analyse them further. On the Carolan harp, the error on the picked points is less than 0.1mm, but the selection of what points to pick is much less accurate than that, since the scan is quite messy around the tuning pin, with lots of scanning artefacts. I would estimate the accuracy of my measurements as perhaps ±1mm

You can see on my graph that there is a certain amount of zig-zagging, alternating around an average value. I saw this also on the spacing of the string shoes on the belly, but I explained that as an artefact of the alternating shoe design. I’m less sure how to understand this alternating spacing on the neck.I have not done such a detailed measurement of any of the other harps, but the point positions of the tuning pins as used to generate the string charts for the Kildare and the Mullaghmast harps can be used to analyse the pin spacing. The accuracy here is perhaps more like ±3mm. The Kildare seems to show some evidence of grouping, but the Mullaghmast pins are clearly spaced incrementally, with each pin a little further from its neighbour than the previous one.

Pin spacing on the neck of the Kildare harp (mm)


Pin spacing on the neck of the Mullaghmast harp (mm) (cropped, the largest spacing is 116mm)

We could follow Billinge by averaging each group on the Carolan harp, and calculating a standard deviation from the average:

Pins 1-3: 17±1.5mm
Pins 3-6: 14.5±6mm (too erratically placed to say much)
Pins 6-12: 13±1.5mm
Pins 12-19: 14.5±1.5mm
Pins 19-26: 18.5±1.5mm
Pins 26-30: 22±1mm
Pins 30-32: 26±1mm
Pin 32-33 crosses the opened neck-pillar joint.
Pins 33-36: 28.5±1mm

I think this kind of analysis can give us ideas about the working methods of the old harp makers. We can imagine the makers of the Downhill and the Carolan harp, working with dividers to lay out groups of pinholes on the metal cheek-band, as well as using dividers to lay out the string-shoes equally spaced on the soundboard.

What then of the Mullaghmast harp, with its progressive spacing? A different school of harpmaking?

My header photo shows a rendering from the laser-scan, showing two points picked for holes 9, 8, 7, 6, 5, and 4. The position of each hole was calculated as an average of the positions of the two points. The background grid is 1mm x 10mm. The messy damage around hole 3 and the break in the neck is visible in the top-right corner.

3d photography as a measurement tool

The bass end of the Carolan harp (which was sometimes called the Rose Mooney harp) is very damaged, and there has been a lot of movement inside the bass joint. However it’s not possible to measure this movement from the outside, because of the later repairs with iron straps and canvas bandages completely covering this part of the harp.

I had an idea to try and make stereo pair photographs of this part of the harp, to see if I could use them to measure the amount of movement both downwards (towards the bass end of the soundbox) and backwards (towards the back of the harp).

Continue reading 3d photography as a measurement tool

Irish harp finials: scrolls, figures and beasts

A discussion about the provenance of the Rose Mooney or Carolan harp which is owned by the National Museum of Ireland, prompted some thoughts about the decorative finial on the tops of the forepillars of the old Irish harps. I thought it might be interesting to line them all up to see if there were patterns or groups.

Continue reading Irish harp finials: scrolls, figures and beasts

Otway harp string holes

While working on something else I came across this from last year which I had meant to write up.

Understanding the tuning and stringing of an old harp requires knowledge of string lengths and angles. This basically means measuring between the tuning pin and the little hole in the soundboard where the string goes in. But Ann Heymann pointed out to me years ago that on the Castle Otway harp, you can’t see a lot of those holes, because the metal strap down the middle does not line up with the string holes in the wood.

Continue reading Otway harp string holes

Gross travesties of Pictish art

After I finished the Trinity College harp neck decoration sheet, I thought again about the issues surrounding this type of art, considering the sketchy and approximate versions of this scheme that we have seen up to now even on the best copies of the harp.

Continue reading Gross travesties of Pictish art

Trinity College harp neck decoration

I am halfway through preparing a sheet, laying out the decorative scheme of the neck of the Trinity College harp.

I thought of doing this two years ago, when I did my scheme for the pillar, but I never got round to it until now.

I will eventually put both the halves together in one sheet, and publish it on Early Gaelic Harp Info, but for now you can get a sneak preview of the left side.

Continue reading Trinity College harp neck decoration

Quill shim

In Karen Loomis’s PhD thesis (volume 3, p.379-380) she prints two photographs of a shim from tuning pin hole no.23 on the Queen Mary harp. One shows the shim extracted; it is made from a split section of a feather quill.

DSCF3965
This photo shows how pin no.29 was going into the neck far too far, because its hole was too big.

On my replica, pins 29 and 30 have needed shimming for some years now. I had originally tried paper, and subsequently sheet brass, but I was inspired by this discovery, to pull the pins and try quill shims.

Continue reading Quill shim

Opening up the harp

I have been thinking for a few years now about the shape of the inside of my harp, in light of the new information we have from Karen Loomis’s PhD research at the University of Edinburgh.

When I commissioned the harp from Davy Patton in 2006-7, the thing we were most lacking was info about the inside – the shapes of the joints, and the profile and thickness of the soundbox. Basically, we had to make a lot of educated guesses.

Since then, we have the CT-scans and other technical studies of the Queen Mary harp that Karen has been working on, and many of our guesses have turned out to be pleasingly correct, such as our choice of timber – willow for the soundbox, and a bent limb for the pillar – but we were quite wrong in our decisions on how to shape the soundbox interior.

Luckily, we had erred very much on the side of leaving the wood too thick, so last week I took the harp to Natalie Surina, of Ériú Harps in Oughterard, Connemara, for her to cut a lot of wood from inside the soundbox.

Continue reading Opening up the harp

Deskford “carnyx”

I was up in Aberdeen yesterday, interviewing for an education project themed around the Deskford carnyx. As part of my preparation I was reading up on the Deskford find as well as on carnyxes generally, and some ideas crystallised in my mind about this object specifically, as well as about the whole theme of reconstructing archaeological objects more generally. And the recreation of ancient music is perhaps the most difficult strand of reconstructing ancient objects, because the musical instrument is not merely a decorative item or a functioning tool, but is the living substrate of a whole other creative art, i.e. music making.

I was chatting with Maura Uí Chróinín in Kilkenny, about the “BC/AD” music-archaeology theme of this year’s Galway Early Music Festival, and she made the point that most music archaeologists seem to work on their own, outside of both the musical and the archaeological mainstream. The reasons for this are obvious enough, since archaeologists most often don’t have music training and musicians don’t have archaeological background, and so the majority of scholars on both sides feel un-qualified to judge or participate in music-archaeology work.

The late Iron age object from Deskford (my photo shown on the right, in the NMS) was excavated in the 19th century and so is, by modern standards, poorly recorded and conserved. It is in the form of a sheet bronze hollow boar’s head, and has with it a number of associated sheet bronze items which seem to form the palate of the boar’s mouth, its lower jaw, and a circular plate which is often assumed to have closed the open back of the head. The original descriptions also mention a wooden tongue mounted on springs but these are lost.

Early suggestions of its function were perhaps as a headdress. In 1959, Stuart Piggot published a paper suggesting it may have been the bell of a distinctive type of Iron Age long trumpet, called carnyx. At that date, the carnyx was known from classical art and literature, and Piggot drew attention to a lost example excavated in Tattershall, England, in the 18th century.

Piggot’s article included a speculative reconstruction of the Deskford boar’s head mounted on a long vertical tube, and despite his reservations and cautions, this image and the idea of the only extant carnyx surviving from North-East Scotland captured the public imagination. In the 1990s, John Purser led a team to build a working reconstruction of the boars head as a long trumpet bell, following Piggot’s drawing. This modern carnyx has been played extensively by trombonist John Kenny – I remember seeing him play it at a concert in Edinburgh some years ago.

In all this excitement, people forget that Piggot’s suggestion was just that – a speculative suggestion made at a time when very little was actually known about the carnyx. Now we have a lot more information available, especially since the publication of detailed information of the set of almost complete carnyxes excavated in 2004 in Tintinac in France. Looking over the depictions, the Tintinac examples (illustration left from Wikipedia) and the River Witham drawing publiushed by Piggot, I see a number of important features that could be said to characterise the carnyx. The tube is tapering along its whole length like a horn, and flares gently but markedly towards the animal head, which is not seperate in shape but forms a smooth continuation of the bore flare. The animal mouth is wide open, not constricting the bell of the instrument. In contrast, the Deskford head tapers the other way, severly constricting the bell of the reconstructed instrument – a recent acoustical study notes that it acts like a “trombone mute”. Also, the use of the circular dished plate to close the back of the boar’s head requires a thin tube, with a sudden step in profile as the tube meets the head. Again this has an adverse effect on the harmonicity of the instrument in contrast to the smooth expansion of the other extant and depicted carnyxes.

These considerations alone make me instantly very suspicious of this idea, that the Deskford head represents the remains of a musical instrument. I can see no specific evidence to support this interpretation and I can see a number of problems, ways in which the Deskford head is markedly different in form from all of the other extant and depicted carnyxes. I would go as far as to say, the Deskford boar’s head is not a carnyx.

A number of descriptions of the reconstruction Deskford carnyx are at pains to point out that it involves a large amount of interpretative or newly-invented design, but that nonetheless it represents a fascinating working instrument that can “result in
instruments capable of playing a valuable role in the musical culture of the present day.”  (M. Campbell & J. Kenny, Acoustical and musical properties of the Deskford Carnyx reconstruction, Proceedings of the Acoustics 2012 Nantes Conference). This is the rub – you invent a new instrument, give it an ancient name and hang it on an ancient cultural icon or artefact, and so set off in a new direction. This is not music archaeology; this is modernist cultural creativity, re-imagining ancient symbols for new purposes. If the purpose was really to get the ancient carnyx up and running, then there are the Tintinac examples ready to be exactly replicated; compared to that, a new instrument using a copy of the Deskford boar’s head as its bell has virtually no archaeological or music-archaeological value. Clearly it is not intended to do music-archaeology work; instead it is designed and produced for present day national-cultural reasons, to provide a newly-invented iconic “ancient” Scottish sight and sound.

We are not so far away from the invention of the gut-strung lever harp in the 1890s, and the neglect of the historical Gaelic harp…

One final thought: many modern depictions or recreations of carnyxes emphasise its long S shape, with a vertical tube topped by a 90 degree bend to hold the animal head, and with another 90 degree bend at the bottom to hold the mouthpiece horizontal while the tube is vertical. It seems to me that all the ancient carnyxes did not have this 90 degree bend at the bottom – some may have had an oblique mouthpiece cut in the lower end of the vertical tube, but the normal arrangement seems to have been a plain mouthpiece on the end of the long tube, as seen on the Tintinac example illustrated above. So the player has to tip their head right back and blow almost vertically into the instrument. A very different playing position with all its implications for sound production!