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CONTROLLING THE SPEED

PHRASAL ACCELERATION
PHRASAL DECELERATION
RHYTHMIC ACCELERATION
RHYTHMIC DECELERATION

You can change the speed of your song without changing the tempo (actual speed).


Vary the length of the phrases
Vary the rhythm within the phrases.

This allows you to show contrast between sections.

PHRASAL ACCELERATION   

The length of your starting phrase establishes a pattern.  
If the following phrases remain the same, they are Constant


When phrases move from longer to shorter they produce phrasal acceleration.
This acceleration is a form of tension that highlights a section.


acceleration phrase

 If the phrases return to the longer phrase it relieves the tension.

acceleration phrase

PHRASAL DECELLERATION

When phrases move from shorter to longer they produce phrasal decelleration.

phrase deceleration

These two devices will highlight specific sections of a song.  
They will focus the listeners attention, (perhaps on the title line).  
They also provide contrast from one section to the next.

RHYTHMIC ACCELERATION


You speed up the rhythm by playing more rhythmic strikes, while maintaining the same rhythmic pattern.
Or, moving from a larger rhythmic division to a smaller one.

rhythmic acceleration

RHYTHMIC DECELERATION

You move from a smaller rhythmic division to a larger one.  Playing slower, keeping the rhythm.  Getting to the essence.

rhythmic deceleration


 

Use of rhythmic acceleration / deceleration creates a tension that is resolved when the music returns to it's original rhythmic pattern.
 This could also be used to highlight a title line.