|--------------------------------------------|
|--------------------------------------------|
|--------------------------------------------|
|-4--4-11-11-11-6-6-6-6-6-6-6-6--------------|
|-4--4-11-11-11-6-6-6-6-6-6-6-6--------------|
|-2--2-9--9--9--4-4-4-4-4-4-4-4--------------|
|--------------------------------------------|
|--------------------------------------------|
|--------------------------------------------|
|-4--4-11-11-11-6----------------------------|
|-4--4-11-11-11-6----------------------------|
|-2--2-9--9--9--4----------------------------|
couplet
|-x-4-x-4-x-2-x-2-x-11-x-11-|
|-x-4-x-4-x-2-x-2-x-11-x-11-|
|-x-6-x-6-x-4-x-4-x-9-x---9-| x2
|-x-6-x-6-x-4-x-4-x-9-x---9-|
|-x-4-x-4-x-2-x-2-x-11-x-11-|