abaa
- Basic rhyme scheme
- Four-line rhyme scheme
- Straightforward rhyme scheme
- Rhyme scheme pattern
- Rhyme scheme of a villanelle's quatrain
- Rhyme scheme for a villanelle's final quatrain
- Rhyme scheme ending a villanelle
- Rhyme scheme at the end of a villanelle
- Rhyme scheme at the beginning of "Can't Knock the Hustle"
- Quatrain scheme, maybe
- How Thomas ends "Do Not Go Gentle . . ."