Re: MIDI Keyboards and BeOS?

> Besides these standard kinds of keyboards, there are the USB-based
> keyboards like from Evolution and M Audio which I have just looked at
> online.  These have no voices or anything, but are used strictly to
> send MIDI messages and control various pieces of software.  These seem
> neat, but the first question I have is can they work with BeOS?

All these USB devices did are sending MIDI events over USB bus.
When we'll have a usb_midi drivers supporting also the whole propriery-but-
standard-in-fact USB MIDI devices outhere, you should be able to use them too.
There a userland USB MIDI driver on BeBits, maybe it can works already.
>
> On that note, what kind of support is there for the standard keyboards
> like the Yamahas mentioned above?  I suppose this depends on the sound
> card driver?

Totally. 
MIDI use a derived serial interface. While MIDI events can be read (and write) 
from your MIDI port by BeOS, any MIDI devices will works 
with any BeOS MIDI Kit softwares.
 
Last advice : having a pitch bend control is a plus usefull to stress a MIDI 
soft synth... sensitive keyboard are a must, but an expensive one.

-Philippe.