way beginning (with only drums)
----------------------------------------------------------------|
----------------------------------------------------------------|
--8-------------8-----9-999----------------8-888----------------|
----9-8~~---------9-8---------9-9-999-8-88----------------------|
----------------------------------------------------------------|
----------------------------------------------------------------|
Then real music starts
----------------------------------------------------------------|
----------------------------------------------------------------|
---------------------8--8-8-8-----------------------------------|
---9--9-9-9--9-9-888-x--x-x-x-----------------------------------|
---x--x-x-x--x-x-xxx-6--6-6-6-----------------------------------|
---7--7-7-7--7-7-666--------------------------------------------|
