But the true shock is the political material. “Arthur McBride” is a furious anti-recruiting song from the Napoleonic era, delivered with a jaunty, almost murderous cheerfulness. Moore and Irvine’s vocal duet turns a tale of conscription into a gleeful fantasy of beating up a British sergeant. In the context of the early Troubles in Northern Ireland (the album was recorded just a year after Bloody Sunday), this was not archival—it was live ammunition.

This was the opposite of the lush, orchestrated “Celtic” sound that would dominate decades later. The album is dry, close-miked, and aggressive. You can hear the squeak of O’Flynn’s pipe bag. You can hear the fret noise of Irvine’s bouzouki. The dynamics are sudden: a furious reel like “The Merry Blacksmith” explodes out of silence with a raw, physical attack. This production aesthetic became known as the “Glendalough sound” (after the studio’s location), and it taught a generation that traditional music could be as visceral as punk rock. In fact, in 1973, Planxty was punk before punk. To listen to Planxty today is to hear the DNA of nearly every subsequent Irish folk act. The Pogues took their rhythmic aggression. Clannad took the ethereal piping. The Bothy Band (formed by Lunny and O’Flynn after Planxty’s first split) took the virtuosity. Even U2’s “October” and “The Unforgettable Fire” owe a debt to this album’s sense of landscape as a character.

Then there is “The West Coast of Clare.” A modern song written by Moore, it is a devastating ballad of emigration and lost love. The protagonist returns to find his lover gone to America. “The harbor lights were shining bright / But for me they did not care.” Backed by O’Flynn’s weeping pipes, it captures the psychic wound of the Irish diaspora. Planxty understood that the folk song is not a museum piece; it is a living newspaper of the heart. To understand the album’s power, one must credit producer Phil Coulter. A classically trained pianist and pop songwriter (he co-wrote “Puppet on a String” for Eurovision), Coulter was an unlikely match for a raw traditional group. But he committed a revolutionary act: he recorded them in a live, single-room setting at Escape Studios in Kent, with almost no reverb and no overdubs.

They open not with a reel but with a slow, devastating air: “The Raggle Taggle Gypsy.” But this is no Victorian parlor song. Moore delivers it with a hushed, conspiratorial intensity, and O’Flynn’s pipes answer with a cry that sounds like wind over a bog. Immediately, the listener is disoriented—this is not “Danny Boy.”