“The poet is the voice of a people, the living memory of their soul, their spirit made visible.”
W.B. Yeats
Cover art is ‘Pythagoras’ by Pietro Longhi
The lower levels of the Filidh seem to have been considered to be Bards or performers, while the higher levels were known as Poets, Healers, Philosophers, seers and Druids. According to some authors, such Bards learned to play the pipes, the whistle, the harp, the lyre (cruit, ‘harp’), the flute (feadog), the sistrum (similar in function to a craebh ciuil, ‘musical branch’), and the bodhran, among other instruments. These authors go on to conjecture, that each particular instrument was used or selected based upon the specific mood and/or tone that the particular Bardic work required. Using such thoughts as a guide, I created the following table of possible Celtic instrumental correspondences:
Instruments and Elements
The Feadog – Breath and spirit
The Harp – Mind and Magick
The Bodhran – Flesh and Bones
The Craebh Ciuil – Brain and Head
The Pipes – Blood and Face
The Voice – Hair and skin

The music of these instruments was woven within the webs of the Filidh as they chanted forth their Filidecht. How was this music structured and determined? What was its source? How did the elements of the dúile relate to the tones and the sounds? How was the Magick accomplished? My own belief is that the Bards usually accompanied themselves with the harp as they recited their repertoire. The works of the higher levels of the Filidh (the Cli, the Anrad, and the Ollamh) were also performed by such Bards, while the Poets themselves directed or guided their chanting. Rarely would an Ollamh Chant him/herself. Upon such rare occasions, great things happened. Amergin’s chanting of “The Mystery” was just such a rare and Magical occasion. Another exception to the rule would have been the execution of the Glám Díceann (a satirical cursing of one king by the Filidh of another). This action required participation by all seven levels of Filidh and was considered to be a matter of life or death (a hawthorn tree was used to center and amplify the power of the chanting). Whosoever was true in the matter under dispute would survive the cursing.

Recalling that Ogham were used as keys to memory, with verses being linked by assonance and alliteration, I maintain that each Ogham had a unique tone or note associated with it on the harp. The tone or string for a particular fidh was vibrated as the Ogham sound was spoken or sung with at least two notes occurring per line. The beginning and ending notes served to connect individual lines of poetry to the next line in a continuing stream of verse and song. In the world of my imagination, I can hear the tones and words of the Bards echoing as they float upon a wave of melody across the room. The sounds I hear remind me of the chanting of monks within the plainsong of their own worship. Perhaps the chanting of Filidh was similar to the practices of modern Anglican or Roman Catholic monks? To better understand these matters let’s discuss two books, The Poets’ Secret by Sean ÓBoyle and Trees for Healing by Chase and Pawlik, that reinforce these impressions for me.
Poets and Bards carried ‘craebh ciuil,’ branches with bells and amulets attached to them. A beginner’s branch would be made of bronze, while journeymen carried a silver branch, and the Master Bards (Ollamh) carried a golden branch. The music of the bells would announce the Bard’s presence and perhaps an impending performance or ritual. In his book, Ogam, The Poets’ Secret, Sean ÓBoyle made a very convincing case for the first use of Ogham to be as a musical tabulature.

He showed how each Ogham had its own corresponding note on the Irish small harp. Much of ÓBoyle’s analysis is based upon the relative positions of tones and semi-tones (steps and half steps). He was able to successfully show a direct correspondence between the symbols of the Ogham alphabet and the tones and semi-tones,. He also explained how the relationship of the ‘tri foilcesta in ogaim,’ (‘three composite letters of the Ogham: Q, NG, and STR), accounts for inflections in the sequence of musical tones. These are the conclusions I draw from a review of his work:
- The Ogham form known as Aradach Finn (Fionn’s Ladder) is a pictograph relating the strings of the Irish practice harp to musical scales. Full tones exist between the symbols having a distinct beginning sound. Semi-tones generally exist prior to the Ogham consonants that represent a muted sound of the preceding consonant (‘T’ and ‘D,’ ‘Q’ and ‘C,’ ‘NG’ and ‘G,’ ‘STR’ and ‘R’). The semi-tone existing in the Ogham vowel sequence is found at the dividing point between the vowels that are considered to be ‘broad’ (‘A,’ ‘O’ and ‘U’) and those that are ‘slender,’ (‘E’ and ‘I’).
- These relationships are listed below for the Greek Dorian scale (which is the ‘characteristic octave in the ‘Greater Perfect system’ of Greek music’):

3. The stringing and tuning of the traditional Irish harp as given by Edward Bunting (Belfast, 1792), with its scale of thirty strings, seems to agree closely with the Greek Dorian assignments.

The following exceptions to the Dorian tuning are explained:
a. All ‘f sharps’ are tuned as naturals or as a lowered semitone (half-step).
b. The tenor ‘F’ is tuned as a ‘G,’ giving two successive ‘G’s’ (called ‘The sisters,’ also
known as the Ogham NG and STR), which were the first strings to be tuned to the proper
pitch. These strings facilitated modal changes in the middle of the scales. Manipulation of the Ogham strings ‘Q,’ ‘NG,’ and ‘STR,’ allowed the tuning sequence to be changed so
that one could play a scale using the same fingering from any position on the harp. This
was a form of ‘key changing.’ The ‘E’ strings of the harp were called Tead Leagtha (‘fallen string’) and were changed to ‘F’ when the melody required it.
d. This basic scale was altered by the above techniques to facilitate using seven different
scales in correlation to the Ogham starting points.
e. The many different Ogham types listed from 1 to 93 in the Book of Ballymote are
indicators of musical arpeggios, selected for suitability in accompanying chanting.
It is clear that, regardless of their many other uses, the Ogham were also a way of relating musical tones and relationships. This is stated plainly within the Book of Ballymote:
“Ogham received its name from sound and Matter –
who are the father and mother of Ogham…”
This reliance on sound and structure, which was inherent within the Druidic Ogham system, was also found within another school of ancient philosophy, the school of Pythagoras. From the “Fragments of Philolaus” (a Pythagorean of the fifth century BCE), we hear similar thoughts to those expressed within the Book of Ballymote:
“The world’s being is the harmonious compound of Unlimited
and Limiting principles; such is the totality of the world and all it contains.”

Pythagoras was said to have gained much of his knowledge from ‘the barbarians’ (the use of the word: ‘barbarians,’ by the Greeks was equally applied to Celts, Chaldeans, Egyptians, Etruscans, Persians, and Scythians). In the Pythagorean cosmology, it was said that the Unlimited was Itself Matter and that the Limited was actually Form. It was further believed that Form and Matter were the parents of the phenomenal Universe. This is mirrored within the Druidic belief that sound and Matter are the parents of Ogham. The almost exact similarity between theses two approaches to Cosmos suggests that Pythagoras may well have studied with the Druids. There is a substantial body of folklore that he did exactly that, even having a Druid as a follower by the name of Abaris.
I am not suggesting that the Druids were Pythagoreans (though both groups may well have traded philosophies and influences). I am suggesting that since the Greeks and Celts certainly shared commercial and military adventures, that they may well have shared
philosophies as well. Further consideration of the direct correspondences between the Ogham and the ancient Greek Dorian musical scales, also leads me to the strong possibility that the ancient Celtic Cosmos may have been related to the Pythagorean concept known as ‘The Harmony of the spheres.’ This philosophy attempted to interconnect the microcosm of the self to the macrocosm of the Cosmos in a manner that was remarkably similar to the ways of the Druids. By studying the relationship of the Pythagorean harmonies, we may discover additional insights into the hidden meanings of the Ogham.

Searles O’Dubhain
Searles O’Dubhain is an American Celtic scholar, writer and story teller who has been practicing Druidry for over 30 years. Searles created ‘The Summerlands’, one of the very first beloved online Celtic pagan communities in the early 90’s. He additionally published ‘Ogham Divination’, that lays a detailed and creative pathway of recreating and discovering the ancient ways of the Druids. This and much more available on his website www.summerlands.com.


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