Swing in Rhythm Doctor

ÖAN EXPLANATION OF SWING
=======================

SIMPLE EXPLANATION
------------------

Swing is used to give a swing feel to notes.
The way it does this is complicated, to ensure that
the notes always fit the standard swung feeling.

In summary:

1) Usually you have an even grid of notes

		□ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □

And you put beats on those notes

		■ ■ ■ ■ ■ ■ ■ □ □ □ □ □ □ □ □ □ □ □
		1 2 3 4 5 6 ^
					hit!

2) Swing changes the GRID by moving the empty boxes
that are even.

		NO SWING
		□ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □

		□  □□  □□  □□  □□  □□  □□  □□  □□  □
		SWING

3) So when you fill them up you get a swung beat.

		■  ■■  ■■  ■■  □□  □□  □□  □□  □□  □
		1  23  45  6^
					hit!


And if you started on the second beat, it automatically becomes an inverse swing:

		□  ■■  ■■  ■■  ■□  □□  □□  □□  □□  □
		   12  34  56  ^
		   				hit!


The grid stays the same, since the swing number hasn't changed, only the starting beat.

So the Swing number affects just the placement of the grid.
How exactly?

In short, for the even numbered boxes of the bar, it applies the formula

(position of swung box) = (position of box after it) - swing

But the spacing of the boxes themselves that are used is not always 1 beat.
Instead it depends on the Tick number of that specific Beat.

Lets look at an example of one with Tick of 2.

EXAMPLE CALCULATION
-----------------------

Okay, lets start again with a bar that has 8 beats.
Let | be the barline
and - be a beat.

Here are five bars.

|--------|--------|--------|--------|--------|


Now lets put a Classic beat. Lets call each 'beat' of those 7 beats, an 'Ö').

Lets make the Classic beat have a tick of 2.
That means it looks like this:

|Ö-Ö-Ö-Ö-|Ö-Ö-Ø---|--------|--------|--------|


The Ø is the clap.


SWING
-----

So what does Swing do? Swing works like this

1) First it overlays the grid of boxes on to the bar, in spacing of Tick.

|□-□-□-□-|□-□-□-□-|□-□-□-□-|□-□-□-□-|□-□-□-□-|

Next it will move the even numbered boxes around depending on Swing.

	For a swing of 1,

	(position of swung box) = (position of box after it) - swing

	So:

	Box2 = Box3 - 1
	Box4 = Box5 - 1
	Box6 = Box7 - 1


|□-□-□-□-|□-□-□-□-|□-□-□-□-|□-□-□-□-|□-□-□-□-|

turns into

|□--□□--□|□--□□--□|□--□□--□|□--□□--□|□--□□--□|


So any notes that were in the second box now get moved one beat later.

So with our earlier example, lets mark those Ös that were in Swung boxes.

|--S---S-|--S-----|
|Ö-Ö-Ö-Ö-|Ö-Ö-Ø---|--------|--------|--------|

S represents the boxes that would be Swung.

So our final pattern is this:

|Ö--ÖÖ--Ö|Ö--ÖØ---|--------|--------|--------|


See that usually the Ø doesnt change position compared to if Swing was 0.
It will only changes position if your first Ö is in a Swung box.


Hope that helps.