I have tinnitus. Where can i find a tone chart with high octave notes i can compare my tinnitus sound to?

I need some type of chart that tells me notes and plays sounds so i can figure out what pitch my tinnitus is. I believe it is an "A", but i am not 100% sure yet. I have only had it a few days(since thursday) and it is now sunday. I am turning life into lemons and lemonades into jam. Where can i find such a chart or program on the computer? It is comparable to the mosquito ringtone, but not as annoying. There are multiple pitches of that ringtone anyway.