Here is a list of some band tunes, which is pretty much the same as the list in the "For Drummers" page. This list will probably evolve to be tunes where both pipes and drums play together. Most of the entries are only drums.
MIDI files require a MIDI player to play and a matching sound font file (with file suffix ".sf2" which the MIDI player requires.). The other file types (MP3, WAV, OGG) are audio files which can be played on many devices and in most browsers.
Each list contains a ".zip" file, which is a collection of all the other files in the list, in a compressed size format that can be easily transferred elsewhere.
Here are some other resources, not produced by the band, some of which are MIDI files.