Good luck. I can help with brainstorming, for instance each slice could be defined in any data structure (coll or dict) and appended to each item could be its descriptors you need and retrieve… except if you want to run stats on samples from various buffers as one item, in which case bufcomposing the source is probably more simple, but again the strength of the current design is that is allows you to experiments with your creative coding intuitions… su go for it and report when you’re stalled, your task might become clearer as you explore it, if you see what I mean.