This transcription was done by ear from the YouTube video "Wellerman" by The Wellermen (which can be found here:
https://www.youtube.com/watch?v=90Oc9Xl5Aps), a TikTok sea shanty group. The song itself is from New Zealand and describes a whaling boat that battles a whale in the middle of the ocean. The main melody is about "wellermen", ships that were owned by The Weller Brothers and brought these sailors sugar, tea, and rum to help them in their off-hours from work. The transcription is as close as possible to the music sung in the video.