The Mari Lwyd, meaning 'Grey Mare', 'Grey Mane' or 'Grey Mary', is a horse-figure carried from door to door by wassail-singing groups between Christmas and New Year.

Beginning at dusk and often lasting late into the night, Mari and her group visit homes and pubs singing traditional Welsh songs. The pwnco ceremony then functions like a rap battle - where the group try to gain entry through an improvised (often rude) rhyme and verse contest. The people in the building sing back in retailation to deny her entry. Evantually, Mari and her group will be allowed in and given food and drink. Mari's entrance into the home or building is thought to be good luck for the year ahead.

She is made of a real horses skull, or a paper / card replica. She has lights or baubles for eyes. Her mane is made of colourful streamers, or holly and ivy. A white cloak falls from her skull, which is attached to a pole, which is held by a person inside it: they control the character's mischievous nature, often snapping their bony jaw at you. 

Origins?

The ritual dates back to the 1800s and is thought to have pre-Christian or Pagan origins. Gray mares are seen as beings who can pass between the realms of the living and the dead. The horse is an iconic symbol - some of the earliest cave-painted shaman figures wear animal masks - and the white horse links to ancient British and Celtic folklore, like the story of Rhiannon in the Mabinogi.

The tradition is mostly asscoiated with South Wales, particularly Glamorgan and Gwent.

Roedd Huw Stephens wedi dechrau y diwrnod miwsig cymru i cael mwy o pobl dysgu cerddoriaeth cymraeg. Hefyd maen dda oherwydd maen am llawer o cerddoriaeth cymraeg wahanol fel indie, punk, rock neu pop, maen am pawb sydd yn dda. Enghraifft o can sydd yn cael ei canu fyna yn 'pwy syn galw' ac maen cael eu canu gan Dom James a Lloyd Lewis.

Dyma y linc am mwy gwybodaeth am dydd miwsig cymru https://www.gov.wales/welsh-language-music-day

The Hay Festival of Literature & Arts, better known as the Hay Festival, is an annual literature festival held in Hay-on-Wye, Wales, lasting for 10 days from May to June. It was started by Norman, Rhoda and Peter Florence in 1988.

The festival has expanded over the years to include musical performances and film previews. A children's festival, called Hay Fever, runs alongside the main festival events. It has expanded internationally too, and similar festivals take place in Aarhus, Arequipa, Nairobi, Dhaka, Zacatecas, The Maldives, Beirut, and Belfast, along with many other locations.

Origins

Dreamed around a kitchen table by the Florence family over 30 years ago, the first Hay Festival was held in 1988 and featured a small selection of authors, including Nobel Prize-winning poet Seamus Heaney and novelist Salman Rushdie.

From its creation, the festival was held at a variety of venues around Hay-on-Wye, including the local primary school, until 2005 when it moved to a location south of the town.

https://en.wikipedia.org/wiki/Hay_Festival

https://www.visitwales.com/things-do/events/festivals/introducing-hay

People also plant daffodils and wear/carry leeks.

St Davids day is celebrate on his day of death on the 1st March 589 AD