When "File Download" appears, click "Save"

When the "Save As" dialog appears, click "Desktop" then click "Save"

If "Close this dialog" is not checked, check it, and then wait for the download to complete.

Double click the new QuickTimeInstaller icon on your desktop

Click Next on the WELCOME dialog

Click YES on the License Agreement dialog

Click INSTALL on the Destination Folder dialog

Wait for the installation to finish.

Click CONFIGURE FILE & MIME types

On the File Types tab, insure AUDIO is checked, and under Audio that MIDI is checked.

On the MIME Types tab, insure AUDIO is checked, and under Audio that MIDI is checked.

Click OK, then when the "Go Pro" dialog appears, Click NO THANKS

After closing your browser completely, and restarting it, you should now have MIDI music capability.