jamhub is a server implements midi-over-websocket protocol and web application with high-quality virtual instruments, drum loops and textures.
Can I attach MIDI keyboard?
yes, you definitely can, so give it a try
I have no sound
please use Google Chrome, it's the only supported browser at the moment
My ping is high
use wi-fi for better performance, not mobile internet. If it doesn't help, you can easily host your own jamhub server on your vm. Create issue and I'll let you through the process. If you can't host your own server, feel free to create issue and I'll host an instance in your region.