Thank you for the kind words :))
I'm curious why you're perceiving so much lag on the lute. I double checked the audio and there is a pinch of air before the sound plays- about .031s worth / about a frame- just perceptible but shouldn't be too hard to work around, I certainly never noticed terribly much when I was testing, but I'm not a musician so I'm not well attuned to that kind of thing. About how much latency would you say you're perceiving? And what OS are you running on? I wonder if some setups might introduce more latency than others.