Guitar - General/Keys of Songs
I want to understand the keys of a song. I know there are different keys and certain notes and chords go into a key to play nice sounding music. But what I want to know is more in terms of the theory behind the pitch of a key. For example, I play a song on guitar in the key of C and it's pretty high for my vocal range, then I play a song in the key of B and it's less high...but I thought that the key of B was higher (in general) than the key of C...because it B comes before C in the alphabet. How does it work...is A the highest key because its' the first letter of the alphabet...I know there are different octaves of A...but I want to know which keys are higher and which are lower...is there a chart or something I can get an overall idea of the theory behind the pitch of the key...
Thanks for your question. A key is more about note names than about specific pitches. For example, the key of C major contains C D E F G A and B, the key of A major contains A B C# D E F# and G#. Each of those notes could be played in any octave. For example, a concert pitch A is 440Hz, but a note sounding at 220Hz or 880Hz is still an A, just an octave below or an octave above concert pitch A.
This is kind of long-winded and tricky to answer in a text-only forum like AllExperts. If you don't mind, I might use this as the topic for a tutorial video sometime soon on my YouTube channel, where I can go into this in a bit more detail.
Keep an eye on https://www.youtube.com/user/PhatPhishSoftware/videos and I'll see if I can get something recorded/uploaded soon.