Hey Friend,
Well it's a good thing we have a long weekend coming up. When I got home last night, my computer greeted me with a lovely little message telling me my hard drive is failing. DANGER! DANGER, Will Robinson!
We're coming up to the end of the D major key with the C#dim chord (C# diminished). Because of its odd sound, you won't see it occurring in songs very often. Diminished chords don't find their way into Rock, Blues or Country songs - mainly because of how they sound.
This is because the 5 note is flattened, so it not only has a minor sound, it's also removing the strong perfect fifth interval and replacing with a minor fifth. By itself, it's just odd sounding. But it does have its place.
We get the chord by combining the C#, E and G notes from the D major scale.
Key of D major
1 2 3 4 5 6 7 D E F# G A B C#
If we were to build the chord out of the C# major scale (which the chord is named after), we would need to take the 1 3 5 notes and flatten the 3 and 5 notes, making them a minor third (3m) and a minor fifth (5m).
1 2 3 4 5 6 7 C# D# E# F# G# A# B#
...becomes...
1 2 3m 4 5m 6 7 C# D# E F# G A# B#
C#dim only occurs in the D major key and the Bm key, so like I said, you won't see it much.
Major Keys:
Key I IIm IIIm IV V VIm VII° D D E F#m G A B C#°
And the minor keys:
Key Im II° III IVm Vm VI VII Bm Bm C#° D Em F#m G A
Here is the introduction exercise to help you play the chord. This diminished chord isn't as challenging to play as some of the others, so enjoy a nice easy day!
Peace~
Dave
| 
