[itsme]

Paul Hardy's Session Tunebook 2016
Paul Hardy provides a great collection of traditional jigs, reels, polkas and the like that you can download here:
http://www.pghardy.net/concertina/tunebo..._paged.pdf
Mostly traditional tunes from the British Isles, many of Celtic origin, including many Irish, Scottish and English dance tunes, but others are from an eclectic mix of sources.
The 2016 edition, as well as new tunes and tidies, has very many chord improvements over the 2015 edition (with thanks to the Brind family).
The CSV corresponds with the 'one song per page' version. It contains a column 'AlternativeTitles' that will not be imported by MSP. If you want to use the alternative titles in MSP just change the column header to e.g. 'custom groups', 'custom' or 'custom2' - wherever you want them to be imported.
If you need a different key you can download the .ABC version and use an ABC viewer for transposing or import ABC into MuseScore.