Can you decipher the musical instruments represented below?
P O
BA BA
ECLART
@ # $ %
Unfortunately this isn't one of my original creations. I will provide a link to where I found it from after the riddle has been solved to avoid spoilers.
EXTRA:
Just a small question that isn't a part of the riddle, can you find out what's special about this question? You know me, I cannot be satisfied with just a single layer riddle :P
But don't worry, the extra bit isn't important, just a small bonus for those who enjoy it.