[Instrumental] [Intro] [Fiddle enters with a sustained double-stop, acoustic guitar strumming G major] [Drums enter with a four-bar kick and snare build-up] [A Section] [Fiddle plays a fast, syncopated Celtic melody] [Mandolin enters with rapid tremolo picking] [Accordion provides sustained chordal backing] [B Section] [Accordion takes the lead melody with a rhythmic, bouncy feel] [Bass guitar plays a walking line] [Fiddle plays rhythmic chops on the off-beats] [Bridge] [Drums drop to a floor tom groove] [Acoustic guitar and mandolin engage in a call-and-response riff] [Fiddle enters with a slow, melodic swell] [Outro] [Full ensemble plays the main A Section theme at increased intensity] [Final sustained G major chord with a fiddle flourish and cymbal crash]