mighty to save

http://www.e-chords.com/guitartab/idmusica/97863.htm
another wonderful song.
just tried to learn it.
but due to unfortunate circumstances

my keyboard has just malfunctioned.
D natural and G sharp / A flat tones are silent throughout all octaves,
therefore its not an input problem, its an output problem.

i guess this comes with age. after all this keyboard is nearly as old as i am, minus a few years.
hope i can get a new keyboard soon.