On Thu, Dec 21, 2006 at 12:45:52PM -0800, [EMAIL PROTECTED] wrote:
> Here is an example of my "non-programmers" approach to forming a chord
> library: (note this example can only be run in version 2.11.4 or better due
> to a crash issue)
With this solution, fingering and notation will cause a problem.
A basic C Major chord might be strung like:
C Major
x o o
+=+=+=+=+=+
| | | | X |
+-+-+-+-+-+
| | X | | |
+-+-+-+-+-+
| X | | | |
+-+-+-+-+-+
3 2 1
So like: \tag #'M {\relative c { < c\5-3 e\4-2 g\3 c\2-1 e\1> } }
And a D Major can be see as a 2nd fret barre of the C Major:
D Major
x
+-+-+-+-+-+
XXXXXXXXXXX II
+-+-+-+-+-+
| | | | X |
+-+-+-+-+-+
| | X | | |
+-+-+-+-+-+
| X | | | |
+-+-+-+-+-+
4 3 1 2 1
As you can see the fingering changes from a chord to its barre
declinaison.
Then we should define the base (the C form) like:
\tag #'M_b {\relative c { < c\5-4 e-3 g-1 c-2 e-1> } }
"_b" would stands for barre
to make it work with the barre form (even if the barre is not shown on
the diagram).
Maybe the Fretboard context could detect if a finger is used on several
strings and then show a barre.
Is it possible to define a fingering like:
\tag #'M {\relative c { < c\5-3:4 e\4-2:3 g\3-o:1 c\2-1:2 e\1-o:1> } }
Which could be interpreted as:
- use 3, 2, o, 1, o fingers if there is an open string (o would
stand for "open string")
- use 4, 3, 1, 2, 1 fingers if there is no open string
this would factorise previous declarations in one.
But maybe the "-x:y" notation is confusing?
Then we would need to define chords twice.
In an other hand, the ChordNames would name chords as:
"C add8 add10" and "D add8 add10". This is due to the C and E repetition
one octave higer (1st and 2nd string).
For same reason if you string C/E (add the open 6th string) you will
get: "E b6/b10/addb13/add15"
Maybe this is parametable ?
cheers
--
Sebastien Gross
_______________________________________________
lilypond-user mailing list
lilypond-user@gnu.org
http://lists.gnu.org/mailman/listinfo/lilypond-user
