@ulrik I think it’s easier to just compile HISE as a VST and run it inside a DAW directly, faster then having to compile your project VST to debug and more reliable then the HISE Controller. that’s what I do anyways. I just have issues with compiling HISE as a multichannel VST (it crashes Reaper).

@Lindon Christopher explained here what is timestamp in the onGridChange callback:
https://forum.hise.audio/post/59358

“timestamp is the sample position of the grid event in the current buffer so you could pass this onto any message you create to assure sample-accuracy”

So I’m guessing this one is the same? Measured in samples, used to start the clock at a specific position in the buffer.

I still don’t understand why in the Clocksynced Arpeggiator snippet the calls on TransportHandler that have a timestamp as a parameter seems to be almost interoperable between getting a specific timestamp value from a note or just putting it as zero. I’ve tried to swap it but can’t seem to note any difference in the execution of the code. Also I’m always having zero as the value of timestamp in the onGridChange callback.