Philo's exercise features a sequence of 2x paradiddle-diddles (RLRRLL) and a paradiddle (RLRR) to round off the bar. In the first half of the exercise, the accents are placed at the start of each paradiddle-diddle and paradiddle. In the second half, things get a little more tricky with the accents falling on each quaver off-beat. Yikes!