Changes

==Rhythm==

==Rhythm==

How the notes are organised temporally, and their relative durations. Most music contains a repeating pattern of stressed and unstressed beats. In written form, in what is known as Standard Notation, the start of each new unit of this pattern is marked by a vertical line known as a barline. Each such unit is referred to as a measure or a bar. The first beat of every bar is normally the most heavily emphasised, although the total number of beats is not always the same. A march typically has four beats per bar, while a waltz typically has three. The number of beats per bar is designated by a time signature.  

How the notes are organised temporally, and their relative durations. Most music contains a repeating pattern of stressed and unstressed beats. In written form, in what is known as Standard Notation, the start of each new unit of this pattern is marked by a vertical line known as a barline. Each such unit is referred to as a measure or a bar. The first beat of every bar is normally the most heavily emphasised, although the total number of beats in a measure differs between pieces and sometimes within a piece. A march typically has two or four beats per bar, while a waltz typically has three. The number of beats per bar is designated by a [[meter signature|time signature]].

==Harmony==

==Harmony==