Commercial Organ Plugins Cost $400. Mine Cost a Weekend and Some Math.

It started because I wanted to hear a pipe organ. There are six in all of Egypt. Six. For a country of 100 million people. So I built one. Three weeks later I have a fully polyphonic synthesizer that generates every sound from pure math in real-time, and a genuine question about why commercial organ plugins cost $400. Why not just use samples Every digital organ you've heard in a plugin, a keyboard workstation, a movie soundtrack, is almost certainly sample-based. Someone recorded a real pipe organ in a cathedral, captured every note on every stop, packaged it into a library. Press a key, play back the matching recording. I didn't want to do that because it felt like cheating on the learning objective (and basically impossible in Egypt). But the more I thought about it, the more I realized samples have a real limitation: they capture what a pipe sounds like in steady state. They miss everything that happens in the first 100ms when a note starts. Real pipe organs are mechanical. When yo