This study examines systems of interconnected autonomous (1) agents that can each play a sound and over time create a rhythmic pattern, following simple rules based on delayed triggering of other agents.The parameters of each system were defined in xml format. Software applications to model and 'play' a system, and to generate five different visual representations were developed in Processing (2) (Java).The aim of the study was to start at all an investigation into the possibilities of agent-based systems to generate rhythmic patterns, as well as testing the potential for rhythmic patterns to be represented in other ways (in contrast to common musical rhythm notation).Four randomly generated systems with increasing structural complexity were examined. Methods to remove redundancies from certain system configurations are presented. The study also shows how directed graph diagrams can be restructured in ways that make it easier to identify loops in the system. It becomes apparent, that any such system can be transformed into a linear trigger-chain structure. The new structure generates the same rhythmic pattern and, by abandoning inner loops, produces diagrams of reduced visual complexity. These diagrams can function as alternative notation systems. All example systems generate stable rhythmic patterns. These loops differ in lengths as well as the time needed to reach stability within the delay & trigger-propagation system. Links to sound-files that demonstrate the audible output of each example system are provided.Further studies will focus on more structured and automated generation processes to find possible correlations of parameters as given in the definition data and the different forms of representation of the system, including its manifestation as an audible rhythm. see: https://processing.org (2) November 2023 'autonomous' here refers to the agents not being centrally controlled, but each acting by its own rules upon incoming signals (1)