A comma inside a mini-notation string stacks two voices simultaneously; it is not a rest
Inside a mini-notation string a comma separates two simultaneous layers, not a pause. “bd sn, hh*8” plays a bd-sn pattern and an eight-hat pattern at the same time — two stacked voices sharing the cycle. New users often read the comma as a rest or a next-step separator, which produces the wrong rhythm silently. This grammar is shared by Tidal and Strudel. A rest is written with ~, not a comma.
Examples
“bd sn, hh*8” // TWO stacked voices: bd-sn AND eight hats together “bd ~ sn ~” // ~ is the actual rest
Assessment
What does “bd sn, hh*8” produce, and what is the correct symbol for a rest?