|---------------------------------|-----3-5-----5-7-3-5-----5-7-----|-------
|---------------------3-5-----5-8-|-3-5-----5-8---------------------|-------
|-----3-5-----5-8-3-5-----5-8-----|---------------------------------|-------
|-3-6-----6-8---------------------|---------------------------------|-------
2
----6-8------8-10-------10-13-|-------13-15-------15-18-18b--rb13~--||
6-8-----8-11------11-13-------|-13-15-------15-18-------------------||
------------------------------|-------------------------------------||
------------------------------|-------------------------------------||
------------------------------|-------------------------------------||
------------------------------|-------------------------------------||
练习 22
|-----------------------------------|---------------------------------------
|-5-4-----8-5-----9-8-----12-9------|-13-12-------16-13-------17-16---------
|-----5-4-----8-5-----9-8------12-9-|-------13-12-------16-13-------17-16---
|-----------------------------------|---------------------------------------
|-----------------------------------|---------------------------------------
|-----------------------------------|---------------------------------------
-------------|-----------------------------------------------|--------------
-20-17-------|-17-16-------16-13-------13-12-------12-9------|-9-8-----8-5--
-------20-17-|-------17-16-------16-13-------13-12------12-9-|-----9-8------
-------------|-----------------------------------------------|--------------
-------------|-----------------------------------------------|--------------
-------------|-----------------------------------------------|--------------
---------------------||
-----5-4-----4-1-----||
-8-5-----5-4-----4-1-||
---------------------||
---------------------||
---------------------||
练习 23
|-----------------------------------------------|---------------------------
|------9-12-------12-15-------15-18-------12-15-|-------15-18-------18-21---
|-9-10------12-13-------15-16-------12-13-------|-15-16-------18-19---------
|-----------------------------------------------|---------------------------
|-----------------------------------------------|---------------------------
|-----------------------------------------------|---------------------------
-------------------------||
-------15-18-------12-15-||
-15-16-------12-13-------||
-------------------------||
-------------------------||
-------------------------||
