In 6/8 meter, the dotted quarter is considered the beat, and there are two of them in each measure. This is what makes 6/8 meter a compound duple meter; compound because its main beat can be divided into three parts, and duple because there are two main beats per measure:
Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials, and often have a characteristic pleasant, fruity odor.n chemistry, esters are chemical compounds derived from an acid (organic or inorganic) in which at least one-OH (hydroxyl) group is replaced by an-O- alkyl (alkoxy) group. Usually, esters are derived from a carboxylic acid and an alcohol.
Esterification involves a reaction between a monohydric alcohol and the oil in the presence of a catalyst. The triacylglycerols in the oil are transformed into fatty acid esters and glycerol. Normally methanol is the alcohol used in this type of reaction. The catalyst promoting the reaction may be acid or alkali.