Cyrch a Chwta: a Challenge!

My cat adores nothing more

Than salmon, whiting and flake.

And as for my Labrador,

He demands a juicy steak.

But they will not eat them raw —

I cook them, for heaven’s sake!

My parrot says I’m cuckoo.

What to do?  I need a break.

James Aitchison

Cyrch a Chwta (pronounced kirch a choota), is a fun Welsh poetic form which has:

1. An octave stanza (eight lines)
2. Seven syllables per line
3. A choice of two rhyming patterns: aaaaaaba or abababcb; the big trick is Line 7, which has to cross-rhyme internally with Line 8, on either the third, fourth or fifth syllable!

In my poem above, the schematic is:

xxxxxxa
xxxxxxb
xxxxxxa
xxxxxxb
xxxxxxa
xxxxxxb
xxxxxxc
xxcxxxb