This is not a query about what a capo does in changing key but how it is written in a chord sheet or similar.
I have seen a quite a few combinations that do not seem to make a lot of sense but perhaps it is just me. I am thinking of sources like UG but not Justin’s tabs.
Perhaps best if I give you some examples to show what I mean.
• You play chords D A E you are therefore the song is in the key of A
Now place the capo on the third fret
• Play the same chord shape grips but the sound you make is actually chords, F C G so this is in the key of C, which is the Key of A moved three semi tones.
How should this be described
• Key of A – that is no longer correct
• Key of C – that is the correct key
• Key of A with capo 3 played with these chords grips
• Or some other way
I am sure I have seen something like A(C) is this what it means, original key A but transposed to C with capo and using the non capoed chord grips or the other way around C(A).
Song is in the key of A - Chords D A E
But the Capo is on the second fret which would be the Key of B if chords D A E were played but you actually play chord grips C G D so the sound is actually D A E just a different voicing than with no capo.
This would be correctly described as still in the key of A
So, what should be shown on the chord sheet.
• Original key or transposed key
Is there no convention, or do you just have
• know what the original key of the song is
• look at what chords voicing are being played with capo position
and work it out for yourself to be sure.
PS Since I drafted this an came back to it, I though actually thanks to Justin Theory Course, I am consolidation Grade 4, and Richards @Richard_close2u Circle of Fifths etc I can probably make a reasonable assessment of what is going on.