[CM] Selecting a sound

[Bill Schottstaedt]

> (display (format #f "Currently selected Sound is ~D \n" (selected-sound)))

selected-sound returns #f if there is no selected sound.  The ~D format
directive wants an integer.  So, use ~A instead.


On Ladspa, the plugin tells Snd how many inputs and outputs it wants,
and it handles the rest.  I could add the usual "snd chn edpos" args to
apply-ladspa -- or maybe use a different name like ladspa-channel.
Seems late in the game to add anything -- isn't ladspa in its current
incarnation dead?