I heard this work on the radio this past Sunday, and I made a note to look up what it was. Sadly I didn’t remember to do that until Monday, when St. Patrick’s Day was already over, because it turns out to be In Ireland, a rhapsody for flute, harp, and orchestra by Sir Herbert Hamilton Harty. Harty was an Irish composer who wrote in the post-Romantic vein, but he had the misfortune to live in a time when Romanticism was well and truly a thing of the past, so as Modernism was taking hold, composers like Harty were often forgotten. This is a pity, because his music is dramatic and picturesque. Not everything can be remembered, but not everything deserves to be forgotten, either.
Here is In Ireland.