this is the scots dialect of the shetland islands. it has a lot of influence from norn, the north germanic language that used to be spoken on the northern isles.
shetland forWirds on youtube has a few videos in shetlandic.
the shetland forWirds website has a lot of documentation and recordings of the dialect.
i hear dee is a website that documents and encourages folk to use shetland dialect.