Upon discovering that KMid wasn't working with my sound card, I installed TiMidity++, which worked fine. As per online instructions (the forums don't seem to like me posting the url, sorry!), I added the line

timidity -iAD -B2,8 -Os -EFreverb=0 -EFchorus=0

to rc.local. I rebooted, and was returned an error message. When I typed this again into the console, I received the message:

Interface `A' is not compiled in.

I removed -iAD (just to experiment), and tried again.

Playmode `s' is not compiled in.

How would I 'compile' interface `A' and playmode `s' into TiMidity++? Is there an easy way of doing so?

edit:

Found the following in 'timidity -h':
...

-i mode --interface=mode
Select user interface (see below for list)

...

Available interfaces (-i, --interface option):
-id dumb interface

...

Doesn't say anything about an A interface, yet several sources seem to insist that it exists. Help?