from that | through.... web desktop simulation for instrument-frames most forked and extended at branches to demonstrate music theory in all bases, And sound processing at all possible sources.
All branches gotto be framed to form a Visiual Music Studio. But you can try yet those unordered pages now till then. I Try coding all in pure javascript for offline process. but iframe cors policy force me use a location. perhaps users may need to use a small local pretenter such as mongo. webaudiofontdata is a synthfont2 sound font collection indexed for easier handle forked from github.