Let me introduce You the MIDIBox AY (YM) V2:
=> http://www.midibox.org/dokuwiki/doku.php?id=midibox_ay_ym_v2
What is new?
* Thanks to Antix there is an YM 2149 (AY-3-8910) Board => http://www.midibox.org/dokuwiki/doku.php?id=midibox_ay_3_8912_board
* There is a new CS with Buttons (no C64 Keyboard anymore) => http://www.subfrequenz.net/midibox/mbayv2/MBAYV2CS.pdf