Musicians Nicolas Quemener, Kevin Burke, Christian Lemaître and Charlie McKerron at The Celtic Fiddle Festival. Ben Costello/Courtesy of the artist hide caption

This week's episode of The Thistle & Shamrock features music by Battlefield Band. John Slavin/Courtesy of the artist hide caption

This week's episode of The Thistle & Shamrock features music by John Doyle. Courtesy of the artist hide caption

This week's episode of The Thistle & Shamrock features music by Liz Carroll. Marianne Mangan/Courtesy of the artist hide caption

This week's episode of The Thistle and Shamrock features music by Bonnie Rideout. Courtesy of the artist hide caption

This week's episode features music by Karine Polwart. Sandy Butler/Courtesy of the artist hide caption

This week's episode of The Thistle & Shamrock features music by Jean Ritchie. George Picknow/American Folklife Center Jean Ritchie and George Picknow Collection hide caption

Cathie Ryan Paul Carroll/Courtesy of the artist hide caption

This week's episode of The Thistle & Shamrock features music by Karan Casey. Courtesy of the artist hide caption

This week's episode of The Thistle & Shamrock features music by Maura O'Connell. Gwendolen Cates/Courtesy of the artist hide caption

This weeks' episode of The Thistle & Shamrock features music by Kris Drever. Genevieve Stevenson/Courtesy of the artist hide caption

This week's episode of The Thistle & Shamrock features music by Alan Stivell. FRED TANNEAU/AFP/Getty Images hide caption

This week's episode of The Thistle & Shamrock features music by Robert Burns. Alexander Nasmyth hide caption

This week's episode of The Thistle & Shamrock features music by Jim and Susie Malcolm. Courtesy of Jim Malcolm hide caption

This week's episode of The Thistle & Shamrock features music by Appalachian musical duo Anna & Elizabeth. Brett Winter Lemon/Courtesy of Anna & Elizabeth hide caption

This episode of The Thistle & Shamrock features the Irish-American band Solas. Courtesy of the artist hide caption

Dunguaire Castle in winter. Francebluebird Photography/Flickr hide caption

Jennifer and Hazel Wrigley are featured in this episode of The Thistle & Shamrock. Courtesy of the artist hide caption

Violinist Nicola Benedetti is featured in this episode of The Thistle & Shamrock. Simon Fowler/Courtesy of the artist hide caption