Action 52 has a bad habit of looping songs in this way: The bass loops twice and the lead loops once only. Sometimes it falls into an endless leadless loop (#52/53 Cheetah Men). Sometimes it is not programmed properly, thus leading into a strange loop. #29 Slashers is an example of this, where the lead loops three times and th bass loops seven times, and that is why Slashers has 85 frames just to loop it properly. Sometimes it does not happen (#27 Non Human). Sometimes the leadless part is chorused (#3 Illuminator).

EDIT: 'Sometimes it is not programmed properly, thus leading into a strange loop.' It just happens even worse in #9.