The arrangement of Glasses
Arrange the 8 glasses on a table in a straight line and fill them all with water. Pour the water such that you fill first glass 1/16 with water, second with 1/8 full, the third 1/4th full, the fourth 3/8th full, the fifth glass half full, the sixth glass 5/8th full, the seventh glass 6/8th full and the eighth glass 7/8th full.
Striking the glasses
Once you have filled the glasses then with the help of teaspoon start striking them one by one. This should be done gently as the glass can break.
Observing the notes produced
As you will be striking the glasses it will be noticed that the glass containing least amount of water is producing louder sound or highest note. In order to ensure that your arrangement is correct compare the notes created with the notes created by a simple piano.