Generate guitar chord midi

What I mean by guitar chord is to have guitar chord represented as midi. Like if it was Em chord. It will be E2 B2 E3 G3 B3 E4.
You get the idea. It will be easy to use midi instead finding what to play for a chord manually. Atleast for me or anyone who don't play guitar. And emulate guitar using instrument plugins.

[ldrolez]

That would be very nice, for this I need an algo that take a MIDI piano chord and make it look like a guitar one