I got in two good sessions in the past two days - cleaned up performance, fussed with the anti-aliasing methods a little more while I was at it(it's simpler now, maybe less distorting but also more obviously artifacted), got the noise working, got volume smoothing in for those that need smooth/fast envelopes, and added some filter controls.

After some more testing I can try adding the delay and making a sound engine on top of this.