Good idea.
I've added it (though as it's unavailable, it doesn't show up by default). I've also added the Lalboard (http://lalboard.com/), which is an open-source project to recreate it.
I've added it (though as it's unavailable, it doesn't show up by default). I've also added the Lalboard (http://lalboard.com/), which is an open-source project to recreate it.
https://en.wikipedia.org/wiki/DataHand