Mark Driesenga
Maybe I should ask a question at this point. What other methods are there? The only one I've really ever known is the clock method. So, that probably explains a lot? 
user884238
I don’t use it. When I did try, it didn’t work for me. Other methods work quite fine.
Mark Driesenga
Harmony Finder
If you don’t know the clock face then it’s not going to make much sense. I’ve used tactile watches, so i can do it. But i remember being at school and being told where things were according to the clock and we hadn’t even been taught it, so it was really not helpful.
The Music Box keepper