Of the four categories, the third is represented here with one more tune: "long" cadences where the lower and upper registers are connected by a stepwise sequence. The others are in category 4: modal tunes, or tunes showing a modal heritage.
"The Ruins of Killmallock" differs from the tunes discussed yesterday in that its B-section is concerned throughout with scaling the octave, down and up, rather than keeping the upper and lower registers separate until the run to the cadence. The result is a clear unfolding of the 6-8 clausula vera figure (see the final two bars).
Modal tunes are difficult to assess on a number of counts, not least being reliability of the transcriptions. If the tunes are as old as their modal turns suggest, then there is also the likelihood of multiple regional or individual variants, only one of which would have been captured in the particular published version. In the two dozen sources I am using for the documentary essay, only a small number of modal tunes appear, almost all of them in two volumes of Irish melodies.
The "Kerry Jig"--in two versions from different sources--is the easiest to read. Beginning in A minor, it closes in C major with a simple rising line, C: ^5-^6-^7-^8.
"The Oyster Wives Rant" is a reel, a Dorian melody (on A) assuming the i-VII-i harmony one associates with Celtic music nowadays. The boxes block out the fifths frame: A4-E5, G4-D5, E5-A4. I haven't marked the possible lines involved, but A4-G4-(A4)-B4-A4 is possible in the lower voices, and a modal primitive line E5-(D5)-E5-G5-(A5) in the upper.
"Thou fair pulse of my heart" is a slow ballad, not a dance tune. Although it is a song, it makes interesting use of lower and upper registers in a manner similar to the fiddle tunes. At the beginning G4-D5 is unfolded, then D5 is extended with a neighbor note Eb5. In the continuation phrase a scale (boxed) moves directly up to F4 and the close is on ^8. In section B, the registral order is reversed—as we've seen several times already in the fiddle tunes—with the upper one first (see directional arrows beginning in bar 9). The slow-moving cadence in the lowest register (boxed at the end) is a surprise.
