bezier curve system and pixel pen

https://patchstorage.com/bezier-curve-and-pixel-pen-pd-vanilla-gem/

you make a pd "sub-patch" object. you put object and type pd and then a space and a name.. and off click so then you are immediately inside the sub patch page. then you right click for properties. you make it yes graph-on parent. and then you move it with margin in the properties window and the size is also in the properties window. then if you go to the above page parent page and you see the object box you made except its larger according to the properties you entered on the inside page.

you put .wav files into an array which is a list . and then you ask for numbers from the array with tabread will give you one number from the list. which they call a sample. etc sample rate...

here I found this page https://forum.pdpatchrepo.info/topic/13087/abstractions-as-creation-arguments-things-i-wish-i-knew-before

I added a bit for extra explaination after looking quickly

mine says divde by zero detected.

because I dont understand expr really, I only do everything without them. which is the same thing. probably - it just looks different. If you write out all of them in english Id try and do it regular and maybe learn it at the same time. write it up and ill try it. otherwise your file is missing "output" object I dont know what library it is. it means dac~ ?

this has a bunch of stuff it uses an older version of pd sometimes but you can work around it , they changed a couple object names.
http://pd-tutorial.com/
http://pd-tutorial.com/english/ch03s07.html

this is how you convert the other one, I dont really use symbol lists yet. so I looked it up on the help page for pack object.
abcd_rollover.pd

here I made an odometer thing
mod4_rollover1.pd