Ok, I'm sick and tired of my off left of centre, lead singers etc. and after blaming it, over the years, on everything, from anti-skating to cartridge channel imbalance to i/cs to amp to furniture and room unsuitablity,- bar my mains voltage, you name it - all to no avail I might add, I have decided to get my hearing tested before I give up and take up knitting. Is there anything I should ask the hearing "specialist" to look out for ? or is it just a general scan sort of thing he should do ?