I'm looking at building a computer fired pyromusical system. I really like the look of Joe's 32 cue slats and I believe there is Arduino code to run them with Pyro Ignition Control. I see quite a few people talking about "Joe Ratman's Special" but it seems that he has hundreds of them. Is there a particular design? Would Joe Ratman Specials, combined with Pyro Ignition Control support 100+ cues? I realise this will be moderately expensive but it will still be far cheaper than FireOne or similar.
The other possibility is a program like IonFire.Music coupled with Merlin SE boards. What are your opinions on this?