Scarborough Fair is a traditional English ballad.
Here is an arrangement for piano solo created in 2021 by Marie-Ève Mainguy.

ISBN 9781609743390. Irish folk song is the generic term that refers to ballads, rebel songs, work songs, lullabies, laments and drinking songs. Many Irish folk songs developed from historical events and Celtic mythology, and include airs, polkas, set dances, long dances, jigs, slides, slip jigs, hornpipes, and reels. About 200 tunes of the great Irish harpist Turlough O'Carolan have also survived through the aural tradition. This collection contains 38 tunes representing a broad cross section of Irish folk music which have been arranged for intermediate solo piano. Also, the songs are suitable for use as teaching material, as recital pieces, or as music for dance.