What does a dot do to the value of a note of rest
A dot added to a value of a note of rest increases its duration by half of its original value.
For example, a quarter rest (worth one beat) with a dot becomes a quarter rest plus an eighth rest (worth one and a half beats in total). Similarly, a half rest (worth two beats) with a dot becomes a half rest plus a quarter rest (worth three beats in total).
The purpose of adding a dot to a note of rest is to extend the silence or break between musical phrases or sections. It helps in providing rhythmic variety and creating different musical accents within a piece.
In music notation, a dot placed after a note or rest adds half of its original value to the duration of that note or rest. Specifically, it increases the duration by 50% of its original value.
For example, if a quarter note (which has a duration of one beat) is dotted, it becomes a dotted quarter note, which is worth one and a half beats - the original one beat, plus half a beat (half of its original value).
Similarly, if a whole rest (which represents silence for a whole measure) is dotted, it becomes a dotted whole rest, which indicates silence for one and a half measures. The original whole measure duration is increased by half a measure (half of its original value).
The function of the dot is to extend the duration of a note or rest without changing the underlying rhythm or time signature of the music. It allows for rhythmic variety and can create syncopated patterns or add a sense of anticipation or tension in the music.