is a utility that will assist a musician in determining
simple
chord structures from single notes. Also, a Transpose function will allow you to see two leys side-by-side.
On start up, the
@geoCHORD
Keyboard and menus are displayed.
@Routines
can be selected by pressing the shortcut (
key and appropriate letter) or clicking on the menu item.
FindChords
Input notes by clicking on the keys of the Keyboard; at least three, and not more than six. They will be displayed as you chose them. Keep track of octaves because you cannot select the same note twice.
After selecting notes, press
@C=/C,
or click on "Find Chords".
@geoCHORD
will determine any relationship among the notes, listing some chords that can be formed.
@geoCHORD
looks only for these chords:
@major 1 3 5
minor 1 - 3 5
sus4 1 4 5
aug 1 3 + 5
dim 1 - 3 - 5 6
7 1 3 5 - 7
min7 1 - 3 5 - 7
Chords found will be followed by the notes they are made up of, followed by a reverse-video " + ", and then by selected notes
in the chord. This will allow you to determine for yourself other more advanced chord constructions. For example, if you click on "C","D","[D#/Eb]", and "G", the following will be displayed:
@Cmin = C, [D#/Eb], G + D
Gsus4 = G, C, D + [D#/Eb]
From this, you might presume that the "D" is the ninth in a Cmin9 chord, or perhaps you prefer it as
PGsus4add+5!
You obviously have to have a minimal knowledge of music theory.
The screen can be cleared by pressing
@C=/X
, or clicking on "Clear Screen"
You must do this before entering new notes for the "Find Chords" routine.
Transpose one key to another by pressing
@C=/T,
or clicking on "Transpose", and follow the prompts. The screen is automatically cleared.
Information will be displayed by pressing
@C=/I.
Quit the program by pressing
@C=/Q
or by clicking on "Quit"
@geoCHORD
was inspired by the PD BASIC program "UltraChord", the author of which I do not know. This is a 40 column-mode program only. DA's are supported.
This program was written For the Fun of It; is not for sale; is not Shareware; is for the use of and free distribution among GEOS users; I, however, reserve all rights as its author.
(.txt)