Hello!
I'm new to the modular/eurorack world and just started building my first rack. The idea is to use it as an effect-rack for live performance. My live set is played from Ableton and sending sounds and modulation to the effects through ES-9. My question is now: what utilities/function modules do I need and benefit from? Maths/Falistri or similar? Would doing it from Cvtools or VCV take away the fun? I have a bunch of midi controllers and a Doepfer Regewerk.

Here is how the rack looks so far:
ModularGrid Rack
Also thinking about adding a Panharmonium.

Thanks in advance!