You could make similar argument against webgl. Sure, it's hard, but take a step back and midi is just a more sophisticated keyboard/mouse (re input, the output

You could make similar argument against webgl. Sure, it's hard, but take a step back and midi is just a more sophisticated keyboard/mouse (re input, the output is just a few pixels). Most musicians are ok with as much as 10ms latency while playing. That's plenty of CPU time. 1ms is about how long it takes sound to travel 1 feet. So how far away you are from your speakers may give you more latency that whatever current CPUs are capable off. I'm not arguing to make web DAWs and audio plugins. But for learning piano it's perfectly fine.