Produce musical compositions that observe the prescribed structure and blend the offered musical idea.
X:1
L:1/8
M:4/4
K:D
['d2 fd', 'fBdB fBdB'  
X:1
L:1/8
M:4/4
K:D
 d2 fd adfd | d2 fd ecAc | d2 fd adfd | ecAc cBBc | d2 fd adfd | d2 fd ecAc | defg a2 af | 
 ecAc cB B2 || fBdB fBdB | ABcd ecAe | fBdB fBdB | ecAc cB B2 | fBdB fBdB | ABcd ecAc | d3 B ceaf | 
 ecAc cB B2 ||  