```
|---------------------------------------------------|
| | |
| OO | OO |
| Ô | Ô |
|--------O---|--------O------------|
| Ô | Ô |
| Ô | Ô |
| Ô | Ô |
|---------------------------------------------------|
| | | | | | | |
| C | C# | D | Mib | E | F | F# |
```