What is the rhyme scheme of meg merrilies?

Meg Merrilies is a poem written in stanzas of varying lengths, but predominantly quatrains (four-line stanzas) with an ABCB rhyme scheme. This means the first and third lines of each stanza rhyme with each other, and the second and fourth lines rhyme with each other. Here's an example:

"When Meg Merrilies did pass,

Each curséd race had held a feast,

And wide their dark memorials spread

Beneath a pale December east."

In this stanza, the first line ("When Meg Merrilies did pass") rhymes with the third line ("Each curséd race had held a feast"), and the second line ("And wide their dark memorials spread") rhymes with the fourth line ("Beneath a pale December east").