Windows 10

Urganite wrote:

if you don't select MPU-401/General MIDI in the configuration options of the software you're trying to run, DosBox will instead route MIDI instructions to whichever sound card synth it's emulating

That's interesting; if you both can confirm it, I'll add a FAQ to VirtualMIDISynth explaining this.

To add a soundfont to VirtualMIDISynth, open the configurator (both through the systray icon or the start menu icon) then open the Soundfonts tab.
You'll find a green "+" button, press it; select the desired *.sf2 file (it can be placed anywhere on your local drive) and confirm your selection.

The list will now show your new soundfont and you're ready to go (just restart any open MIDI application if needed).

As a follow up on my previous post. I have loaded in the "Soundfonts" tab two Soundfont chains. They are listed as  C:\Users\Edwin\Desktop\Timbres Of Heaven GM_GS_XG_SFX V 3.2 Final.sf2  and  C:\Users\Edwin\Desktop\FluidR3_GM .sf2-Copy.sfArk. Both boxes are checked. When I try to use CoolSoft in Notation Composer  the test run is silent as well as the downloaded sheet music. Any suggestions? thank you, Ed Burk

bogie152 wrote:

had to download VirtualMIDISynth a few times until it downloaded without an error

Glad you sorted it out ;)

Usually this happens if the SF2 file is corrupted or cannot be accesed.
Try to move it to another folder (i.e. the Desktop): remove it from VMS configuration, move the SF2 file on the desktop then add it to VMS again.

Otherwise try to reload the SF2 file again...