Abba is highly logical.

Rondo is ABA, ABACA or ABACABA.

“Abacab” isn’t really ABACAB, nor ACCAABBAAC. It’s actually ABABCABD.

WHEN YOUR MIND GOES CRASH BANG WOOSH is AABCCBACCBA.

Abracadabra is a powerful word, not to be confused with “Debra Kadabra”. It’s also an album by everybody.

“Pioneers Over C” is ABCDEABCDFGABCDEH, a really nasty bugger.

“Space Shanty” is ABCDEFGHIJKCLMB. Yeah, those fellows sure didn’t like repeats.

Humans repeatedly think the darnest things.