Section A Sí Beag Sí Mór

The original tune of Sí Beag Sí Mór.

The inversion, the tune turned upside down.

The inversion up a 3rd roughly as Barry uses it in section A. Note Barry uses 2, 4/4 bars amongst all 3/4.

The 2nd half of section A is even more fun. It's the tune backwards and upside down, a retrograde inversion. This idea of taking patterns of notes, inverting them and/or using retrograde is from a style of music called serialism, from the early 20th Century. This is it as Barry gives it to us starting in the L.H. of the piano. If you read it backwards and invert you can see this is a retrograde inversion.
Reminder; Revise Barry's use of Canon in this section, and remember Serialism is contemporary, canon is not.

Section B

Note the time signatures and rhythms especially the last bar, triplet. Familiarise yourself with the the main notes and patterns used in this theme.

Section C

Note the alto clef which is used by the Viola. The middle line is middle C.

Section D Beidh Aonach Amárach

This is a great place to study the unusual time signatures used.

Section H Lord Mayo's Delight