I'm making all the recordings of my online tin whistle tune teaching events for newer players available for purchase on Gumroad:
https://gumroad.com/michaeleskin
Also linked to on my whistle teaching site:
http://michaeleskin.com/whistle
Each tune lesson is approximately one hour, taught in phrases, followed by discussion of ornamentation and variation.
You can try out the lesson for "The Kesh" for a dollar to see if you find my teaching style to your liking.