Is Chant of Metta from Tipitaka? I came across 'The Chant of Metta' (Metta Gatha), in a beautiful rendition by Imee Ooi in this YouTube video.

Here is the full text in Pali, with English translation: THE CHANT OF METTA

Is this chant from the Tipitaka or is it a later composition? The Karaniya Metta Sutta from Tipitaka has different wordings in this translation.
The popular chant of metta is originated from the Theravada Tripitaka. This can be found in Kuddaka Nikaya->Patisambhidamagga->Yuganaddawagga Mettakatha

Read from page 130