You will be my friend to the very end what kind of memory aid is this an example of

Ode or Rhyme Mnemonics

Explanation:

Rhymes have always made things easier to remember and that's one of the reasons that early poets decided to write poems with good rhymes. Even today, rhyming is still used as a technique to remember an information. Another example of similar Ode Mnemonics would be:

"Cyanate, I ate. Cyanide, I died"

b b b b b b   b b b   b b b b b