Logic 7 - microtuning capabilities and problems

Notes on Tuning implementation in Logic 7. October 2004.

How to LucyTuned your tracks to be played by Virtual instruments in
Logic 7.

From the Main Menu go to File/Song Settings/Tuning .....
Click on the "Fixed" button.
Choose "John Harrison (1775), almost 3/10-comma, third = 1200/pi"
Select "Fixed" Root Key to A (i.e. A4 will be 440 Hz)
Click on "Copy to User" button.
This will set A at 0.0 and all the "black" notes will be set to sharps
(notice their negative values).
i.e. C#-D#-F#-G#-A#.
Click on "User" button, and set "User Root Key" to A
(This is so that your retuning will be set so that A will play at 440Hz.
[If you select any other User Root Key, the resulting tuning will be
derived from that note's frequency in equal temperament, and will no
longer be based on A=440Hz.
This may cause problems if you wish to play with other LucyTuned
instruments.
(e.g. guitars, whose strings would otherwise have to be retuned.)]
If you wish your tuning to be other than the now selected
C–C#-D#-E-F-F#-G-G#-A-A#-B (0b5s),
you will need to adjust the notes.

To make the black notes be flat.
Use these cent values.
Bb= +22.5
Eb= +27.0
Ab= +31.5
Db= +36.1
Gb= +40.6

Change as required or select the values from the rightmost column "l"
in the following table.

The way in which Logic have designed this system, creates a difficulty,
if you should wish to use more than
one assignment for a note.
To use both Ab and G# (for the chords F minor and E Major respectively)
in the same song, you will have to do some imaginative
tweaking.
There are a number of way this can be achieved.
a) Run two different songs with different tuning assignments.
b) Remove and replace the offending notes/chords in the audio mix.
c) Use another method of retuning.
i. EXS24 as explained below
11. Use seperate tracks of seperate tunings.
iiI. Pitchbend (only to nearest 1/64th of a semitone) specific notes to
compensate (Last resort).
d) Propose or invent a new method.

When recently producing LucyTuned Lullabies II, with James Sanger (of
Keane & Dido producer fame),
we used a combination of methods a), b), c)i & c)ii.

You can hear the results at:

http://www.lullabycards.com

Details are at:

http://www.lucytune.com/midi_and_keyboard/pitch_bend.html

Charles Lucy - lucy@... (LucyScaleDevelopments)
------------ Promoting global harmony through LucyTuning -------
for information on LucyTuning go to: http://www.harmonics.com/lucy/
for LucyTuned Lullabies go to http://www.lucytune.com
http://www.lucytune.co.uk or http://www.lullabies.co.uk