I know this probably really doesn't belong here, but i didnt quite know where to put it. anyway. My question is, what are the application for the C# string *with proper amp, ie Whappo Grande*. I am just wonder with a string with a frequency close to whale communication *just a joke lol* jk. could be used, it seem it would be difficult for the human ear to differentiate C# from D or D from D# or E. Do not get me wrong! I LOVE ERBs. I'm trying to get an 11 made at the moment. This is why I'm asking is because i just want to know what advantages there would be to having that than an Ab. I know that can be alot of personal preference, but if you guys could inform me about it, that would be great.