Hi, this needs Pd 0.51-the highlight is a new abstraction called [batch.rec~] that records your patches into a sound file in batch mode. In this way you can render whatever amount of audio as fast as possible in your computer. This is possible with the new 'fast-forward' message to Pd, available in Pd 0.51-1. The cool thing about this object is that it has multichannel support. The "Live Electronics Tutorial" is part of the package and relies on the ELSE library. Find this folder inside the 'else' folder, check its readme. The tutorial also provides an example on how to use this new 'fast-forward' feature. Check "Vol.1/Introduction-Pd.Quickstart/2.Syntax/4.fast-forward.pd". Find downloads for basically every platform possible now (there are 4 different ones for raspberry pi only) at https://github.com/porres/pd-else/releases/tag/v1.0-beta30 - Check also in this link more CHANGELOG details. A Changelog for the tutorial is here https://github.com/porres/Live-Electronics-Tutorial/releases/tag/v1.0-beta-3... You cal also download this directly via "Pd => Find Externals", just search for 'else', it's already online!