I went to a workshop today and we did a tune which the tutor called Lisnegan Jig or something similar Jig. 6/8 and in key of D. She couldn’t spell it for me so couldn’t find it on google. 'm back tomorrow and would love to have the music as I could practise. 
Just in case nothing more likely shows up, searching on “lis” in the ABC tune finder ( http://ecf-guest.mit.edu/~jc/music/abc/FindTune.html ) turned up “Lisa Cronin’s Jig”, “Lisheen Jig”, and “Liscannor” (which appears to be a jig).
(Also, the “The Larry Hates Mailing List Manager Software Jig” 
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Checked it out but couldn’t find liscannor. Still searching.
Nope. That wasn’t the one but that’s a lovely jig and I’ve filed that one to learn. Thanks.