Lugo, on below YouTube, does a really good job explaining how to quickly sample sounds into Koala Sampler.
So, I’ve bought the Tube AU app too and tried it, but too bad, it did not work on my iPhone.
Apparently it needs to be done on split screen mode on an iPad.
So, I falled back to the default sampling style, which is to “import recorded videos” from YouTube.
That is this –>
Still, usable and easy.
Now, I am kinda considering of rebuying an iPad, as I already sold my iPad Pro 2018 version.