Along these lines:

---10h12p10-----------------------------10----------------|
-----------12-10-------------------s12--------------------|
-----------------12---9s7-9s12-----s12--------------------|
-----------------------------------s12--------------------|
----------------------------------a couple times----------|
------------------------------------------here------------|

----10------------------------------------10---12-10------|
-------12-12--10--8------8-10-8--10-10s12-----12----------|
----------------------7h9---------------------------------|
----------------------------------------------------------|
----------------------------------------------------------|
----------------------------------------------------------|

----------------------10-------------------------------|
-------8-10-8-10-10B12~~~~b10-8----8---8---------------|
----7h9--------------------------9---------------------|
-------------------------------------------------------|
-------------------------------------------------------|
-------------------------------------------------------|

----------------------------------10-------10-----------|
--8-8-8-7-7-5-3-5-5-5-3-0 ----s12-----------12-12-10-~8-|
------------------------------s12-----------------------|
-----------------------------repeat here----------------|
--------------------------------a few times-------------|
--------------------------------------------------------|
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