I think it is quite useful to be able to deal with both MIDI and ABC. It is true, as Noreen has said, that JC's site (which is the best starting point I think) does offer tunes in a variety of formats but some sources will only offer one format. Getting suitable software also gives you the advantage of being able to edit and produce your own tunes. Again, as Noreen says, you don't have to learn but I think, in time, you may be quite pleased with the added benifits you gain by learning.

Oh and BTW, I learned this reel together with the High reel from a Dubliners record - one of the first recordings I heard that got me wanting to learn the tenor banjo - I still can't play like Barney though!

Jon