What's to know? They're just like major/minor triads. Here's Bdim:
<BLOCKQUOTE><font size="1" face="Times, Verdana, Arial">code:</font><HR><pre>
|-----| |-----| |-----|
|-----| |-----| |--3--|
|-----| |--4--| |--4--|
|--3--| |--3--| |--3--|
|--5--| |--5--| |-----|
|--7--| |-----| |-----|

root 1st 2nd

[/code]

[This message has been edited by ekstasis16 (edited 08-13-2000).]