ear candy

A plain villanelle: one without that line tart or sweet to the ear on first hearing.

aphoristic aphrodisiac

The villanelle: a form made to order for the aphorist.

emotional leakage

Only the relatively simple forms (e.g., sonnet, villanelle) can be vessels for our psychic impulses. They retain the lyric aspect. While elaborate forms (crown of sonnets, sestina, etc.) leak emotion in direct proportion to the complexity of their structure.