Each episode of Perfect Lives has its own meter, or (more accurately) rhythmic template. The final episode, "The Backyard," alternates in sections between 15/8 and 12/8 meter, that is, between passages of five beats and four beats with a dotted quarter-note as the beat. (Ashley's statement in the first edition of Perfect Lives that the alternation is between five and six is mistaken.) In this episode, Tyranny improvises on the piano during the 12/8 passages, while the organ plays somewhat minimalist passages during the 15/8. Here is an audio example of the first 12/8 passage, from 2:35 on the Lovely Music recording to 5:35.
Below is a transcription of Tyranny's playing:
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