On: Ask HN: Is there any interactive instrument teaching website?

[speedgoose]

That may not help you a lot but there is for piano. I use Flowkey and the app does more or less that. I don't know if the sound recognition is very good, I use it with midi and not the microphone because I play with a headset.

[drmacak → speedgoose]

Thanks, so you are using midi keyboard and the app checks midi notes if it is correct etc., rigth? I will take a look.

[speedgoose → drmacak]

Yes, it's not extremely advanced but it's more than good enough for me.