Produce musical compositions that observe the prescribed structure and blend the offered musical idea.
X:1
L:1/8
M:4/4
K:D
['', 'B2 BA', 'B2 BA BGEF'  
X:1
L:1/8
M:4/4
K:D
 GA |: B2 BA BGEF | G2 Bd efgd | B2 BA BGEF | GBAF G2 GA | B2 BA BGEF | GABd efgd | B2 BA BGDF | 
 GBAF G2 GA | Bdef g2 eg | f2 df edBA | Bdef gfgb | afdf e2 ed | Bdef g2 eg | f2 df edBA | 
 B2 d2 d2 ef | gfaf gedc :| B2 BA BGEF | G2 Bd efgd | B2 BA BGEF | GBAF G2 GA | B2 BA BGEF | 
 GABd efgd | B2 BA BGEF | GBAF G2 ||  