Key: B
Introduction:
D--10--
A --10--
E ---8--
D--10-10-m7-8-8--7-8-8--8-10-10-8--
A --10-10--7-8-8--7-8-8--8--8--8-6--
* * * * * * * * * * * * * * * * * * * * * *
D--10-10-m7-8-8--7-8-8--8-10-10-8--
A --10-10--7-8-8--7-8-8--8--8--8-6--
D--10-10--10-15-15--15-8-8--8-10-10-8--
A --10-10--10-13-13--13-8-8--8--8--8-6--
* * * * * * * * * * * * * * * * * * * *
D--10-10-m7-8-8--7-8-8--8-10-10-8--10-10--7-8-8--7-8-8--8-10-10-10----
A --10-10--7-8-8--7-8-8--8--8--8-6--10-10--7-8-8--7-8-8--8--8--8--8%%%%
D--10-10--10-15-15--15-8-8--8-10-10-8--10-10--10-15-15--15-8-8--
A --10-10--10-13-13--13-8-8--8--8--8-6--10-10--10-13-13--13-8-8--
D-8-10-10-10----
A -8--8--8--8%%%%
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *