On March 18, 2014 at 16:35, highfigh said...
It means the same thing, but the way I was taught, my teacher simplified it- To find the key, raise the last sharp 1/2 step or use the 2nd last flat.
F is easy- Bb only. C has no sharps or flats.
He used to read from flute and violin etude books for his sight-reading practice. Guy could read like a M-Fer, but when he improvised, it sounded too "technical' until he took an ear training course which, I have to assume, was prompted by my playing things that didn't sound like total crap, even though I knew a fraction of the theory.
Or you could just remember that 4 sharps is E major, maybe C# minor, 3 flats is Eb maj...
Yes there are formulas but it's pretty easy to just look at a key sig and know what key it is.