The indigenous music of the island is termed Irish traditional music. It has remained vibrant through the 20th and into the 21st century, despite globalising cultural forces. In spite of emigration and a well-developed connection to music influences from Britain and the United States, Irish traditional music has kept many of its elements and has itself influenced many forms of music, such as country and roots music in the USA, which in turn have had some influence on modern rock music.
Irish traditional music includes many kinds of songs, including drinking songs, ballads and laments, sung unaccompanied or with accompaniment by a variety of instruments. Traditional dance music includes reels. The polka arrived at the start of the nineteenth century, spread by itinerant dancing masters and mercenary soldiers, returning from Europe.
In the nineteenth century folk instruments would have included the flute the fiddle and the uilleann pipes. 

Symbol for Celtic Christianity that combines the traditional Christian cross with a ring through the cross’s intersection. Also referred to as the High Cross, the Irish Cross and the Cross of Iona. The ring is considered a solar symbol of energy, a life source.

Claddagh:

The heart represents timeless love, the crown represents loyalty and fidelity, and the hands represent friendship.

Irish Harp:
The traditional symbol of Ireland, the harp is said to reflect the immortality of the soul. The musicians of ancient chieftains played the harp, and it remains one of the most popular Celtic instruments today. You’ll find the harp everywhere in Ireland, from coins, uniforms and the state seal to the Guinness pint glass