Distance -1 / 2 is very important because it will give to attract tendency to pitch, namely:
- Tone-7 to draw the basic tone scales again.
- Tone-4 to pull a third tone scales.
An original tone can be elevated two times half the distance, giving way writing with a double dagger mukanyadan add-isis (eg: c = cisis)
An original tone can be lowered two times half the distance, writing with multiple moles marks and add-eses (eg, b = beses).
If these changes are not used, then it can be put on alert again. Sign back is to restore single or multiple changes to the original tone. If you want to restore from single to multiple changes, then this should be noted in particular.
Show on piano and show that a high or low tone does not always fall on the black keys.