If we look at the typical piano keyboard the visual impact is beneficial to demonstrate this big picture ….
You will eventually see the repeating pattern of white keys and black keys. The pattern repeats over and over. The piano is ideal because even though it is squeezed to save space, the keys and notes are linear; to the left the notes or tones produced get lower, and to the right the notes get higher. As we look to the center we can locate what is called ‘middle C’. We can use this note as a good reference on the piano because it makes the key of C Major easy to see and play. Other instruments will make it easier to see and play other keys. This has to be detailed later, but for now, if you start playing the middle C and then play each sequential white note, you are playing in C Major.
A simple count however shows there are 12 notes between each ‘repeat’ of the cycle or each octave visually displayed on the keyboard. That’s it. 12 notes and then it repeats. Now that doesn’t sound too mysterious, does it? The mystery comes in on knowing what notes to avoid. If you eliminate the notes that are not within the scale or key you are working in, it becomes like the key of C Major on a piano; you will easily see and play the right notes.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| C | C# Db | D | D# Eb | E | F | F# Gb | G | G# Ab | A | A# Bb | B |
In the key of C Major, it would be a safe guess based on the above, to play white notes. It the simple chart above you can also see the numbers greyed that represents the black keys. In this example, the black keys are not within the C Major scale. For other scales and variations of scales, they WILL!
Generally speaking, if we are playing the C Major scale, playing black keys will not always fit in with the other notes being played. White keys have a much better chance of ‘fitting in’ with other notes being played.
Which reminds me of a joke about musicians……..
What is the difference between a jazz band and a rock band?
The jazz band plays thousands of chords to three or four people and the rock band plays three or four cords to thousands of people!