I'm trying to create guitar chord application but the chord chart for a single chord is too many. Listing all would take time and not efficient. For example, C major chord has variation such as the chart below
Is there any way that the chart can be generated by with/without knowing the keys to create the chord? ie, CEG for chord C major.
On
Have you ever seen the book called "Fret Logic"? It shows the mathematical logic of the guitar fretboard. There are also shortcut versions of most chords, such as the nice 3 string version used a lot in cross picking: x x x x 5 5 3 This is a shortened version the C chord in the A position, but it is used a lot.
Contrary to the comments I think this is possible. If you got all of the open chord shapes such as..
Then you can shift them up using bar chords and you should be able to write code to calculate all the permutations for a particular chord. For example if you wanted all the C major triads (as in your question) you know one is
But you also know one of them is the open A shape above but shifted UP 3 frets...
This is your third chord in your question. You can also calculate where to shift the open E shape, which would be...
Again, this is one of the chords in your question. This way you can calculate all the positions for any chord using code - providing you have a sufficient set of open chords that can be comfortably shifted up like this.
So your set of C chords using these initial open shapes would be...
C Chords...
8 10 10 7 8 8
3 3 5 5 5 3
0 3 2 0 1 0
X 10 10 12 14 12
Now if you wanted to know the set of D chords you can actually calculate these by adding 2 to all the numbers above (two of them wrap around an octave but you can work this into a calculation)
D Chords...
10 12 12 11 10 10
5 5 7 7 7 5
10 13 12 10 11 10
X 0 0 2 3 2