Carol has asked me to put together a music lesson for the musicians who are just starting out on their instruments.
The most important step in learning music is to understand what a key is.
The key consists of selecting a group of notes(diatonic scale)which are selected from all the notes (chromatic scale) using a formula.
This formula consists of a series of whole and half steps.
C C# D D# E F F# G G# A A# B C
Each step in the chromatic scale is called a half step
Two half steps equal.....you guessed it, a whole step
Notice that there are no sharps between B&C or between E&F
The formula is
1 whole step 2 whole step 3 half step 4 whole step 5 whole step 6 whole step 7 half step 8
CDEFGABC DEF#GABC#D ABC#DEF#G#A
For the flat keys remember that a sharp of a lower note is the flat of the next higher note
C# is the same note as D flat
G# is the same note as A flat