pkgsrc-wip/vkeybd

To get the right raw midi output device in NetBSD, this must be set during make.
Use the midiplay "-l" option  to get a list of possible devices. 

Example:

midiplay -l
0: PC speaker
1: DS-1 integrated Yamaha OPL3
2: Yamaha DS-1 MIDI UART

make R=1

make install