The repertoire for this tour draws from traditional Irish and Scottish material as well as original compositions by members of the ensemble. As noted MacInnes’s song repertoire is rooted in Gaelic tradition and includes puirt à beul (mouth music), walking songs, laments, boating songs, and hymnody from the Hebrides. O’Dowd alternatively selects
songs from the folk tradition that deal with contemporary themes such as work, migration, memory and belonging. He places particular emphasis on the songs of Thom Moore, whose connections run through the ensemble’s own histories as both family friend to the O’Dowd’s and fellow “Midnight Well” band member to O’Connor.
Original composition is equally central. O’Connor speaks of the accordion as an instrument of enormous expressive possibility: “It has its own unique voice. And you can express a lot of humour and development in music on the button box.” His view of composition resists rigid categories of innovation or orthodoxy: “I compose a lot of stuff that's pretty much down the centre of the fairway in terms of traditional music. If someone says, that tune is like everything I've ever heard; that’s a compliment. And if someone say it's like nothing I've ever heard, and it could be very traditional tune; that’s alright also. It’s not meant to be either, my compositions are about letting the expression flow, not being curtailed.”
That emphasis on expression over prescription extends to questions of regional style. Asked about affinities with Sliabh Luachra, O’Connor responded: “I love playing polkas and slides. They talk about regional styles as identifiers of whether you come from East or North Galway, and so forth. But we'll say a person from Donegal might have a different musical spirit, you know, and maybe moving to Sliabh Luachra might be the best thing they could do for their musical being. While I respect the idea of localities and regional styles your musical spirit should be freer.”
That freedom is heard in his “picture tunes,” instrumental music which tells a story. He explains: “I have a tune called “The Goat Jig”. I added ornamentation, one or two of the notes, to sound like a goat bleating. Parts become very dramatic. There are rhythmical hits added to imagine two goats fighting on a cliff edge to the death. One night, while playing in Inishturk, a local Sean Nós dancer, John Francis Heanue, hopped out on the floor and enacted the whole scene and the whole crowd got behind him.” Such stories reveal that these tunes are not merely to be played, but worlds we are invited into.