Changing grub default tune

[Linux for blind general discussion]

Hi list,

I wonder if it's possible to change default grub boot menu?
I tried changing option in /etc/default/grub on line GRUB_INIT_TUNE and
update grub but the dboot tune is still a single beep.

It would be great if I can have unique tune to differentiate with BIOS
boot tune.

I am using Debian 9 Stretch x64.

Any help would be appreciated

Best Regards
-- 
Edhoari Setiyoso