This is mostly a test to see how well this will show up, but I'm experimenting with some text-based (I guess UTF-8) chord diagrams. If anyone plays guitar and/or has some feedback, feel free to chime in.

These are drop 2 chord voicings on the top 4 strings of a standard-tuned guitar. Arranged vertically, with each shape representing each chord piece. The gaps are for clarity, but each line ought to be successive and the patterns repeat themselves.

Edit: Well, it seems some of the symbols aren't rendered at a fixed-width. Though, they are in the font in my editor. Hm. I guess that's what I get for using symbols for an unintended purpose.

EditEdit: Oh, I see. Firefox is using three different fonts to render the symbols. SF Mono is my default monospace font, and it only renders the ◊ symbol. It falls back to Courier New for ○ and Segoe UI Symbol for the rest. Interesting.

▢ = Root
△ = Major 3rd
▽ = Minor 3rd
○ = Perfect 5th
◎ = Diminished 5th
◊ = Major 7th
◇ = Minor 7th
◈ = Diminished 7th

Major 7 
Drop 2 Voicings
Top 4

EADGBe
------

||||○▢
||◊△||

||▢|||
||||||
|||○◊△

||||▢|
||△|||
|||||○
|||◊||

||○▢△|
||||||
|||||◊

------

||||○▢
||◊△||

etc...




Dominant 7
Drop 2 Voicings
Top 4

EADGBe
------

||◇|○▢
|||△||

||▢|||
||||◇|
|||○|△

||||▢|
||△|||
|||◇|○
||||||

||○▢△|
|||||◇
||||||

------

||◇|○▢
|||△||

etc...




Minor 7
Drop 2 Voicings
Top 4

EADGBe
------

||◇▽○▢
||||||

||▢|||
||||◇▽
|||○||

||▽|▢|
||||||
|||◇|○

||||▽|
||○▢||
|||||◇
||||||

------

||◇▽○▢
||||||

etc...




Half-diminished 7
Drop 2 Voicings
Top 4

EADGBe
------

||||◎|
||◇▽|▢
||||||

||▢|||
|||◎◇▽
||||||

||▽|▢|
|||||◎
|||◇||

||◎|▽|
|||▢||
|||||◇

------

||||◎|
||◇△|▢
||||||

etc...