Ko Ahorangi Tā Tīmoti Kāretu tētahi kaiwetereo kauanuanu nui katoa o te iwi Māori. Ko ia te kaikōmihana tuatahi o te reo Māori mai i te tau 1987 ki te tau 1999, ā, ka whai mai ko tana noho hei kaiwhakahaere matua i Te Poari Matua o Te Kōhanga Reo mai i te tau 1993 ki te tau 2003. Ko ia hoki tētahi i whakatakoto i te tūāpapa o Te Panekiretanga o te Reo, me te aha, i tū ia hei kaiwhakahaere matua mōna.

Nō te tau 2019, e iwa ngā waiata ka whakamāoritia e Tīmoti i te reo Pākehā ki te reo Māori mō te kōpae waiata o Waiata/Anthems i eke rā ki te taumata tuatahi i te tūtohu kōpae waiata o Aotearoa i te marama o Mahuru 2019.

Sir Tīmoti Kāretu is one of Māoridom’s most respected linguists. He was the first Māori language commissioner, between 1987 and 1999, and then was executive director of Te Kohanga Reo National Trust from 1993 until 2003. In 2003, he was closely involved in the foundation of Te Panekiretanga o te Reo, the Institute of Excellence in Māori Language, and served as its executive director.

In 2019, Tīmoti translated nine songs from English to Māori language for the album, Waiata/Anthems, which peaked at No. 1 on the New Zealand album charts in September 2019.