Develop musical compositions by respecting the prescribed structure and combining the presented musical concept.
X:1
L:1/8
M:4/4
K:D
['d AB d>A B', 'f/g/ af ed/e/ f/d/e/c/'  
X:1
L:1/8
M:4/4
K:D
 d |:"D" AB d>A B d2 d/B/ | A/B/d d/B/A"G" B3 d |"D" AB d>e fe d>e |1"D" fe"G"dB"D" A3 d :|2 
"D" fe"G" dB"D" A3 f/g/ |:"D" af ed/e/ f/d/e/c/ df/g/ | afed"G" B3 f/g/ | 
"D" af ed/e/ f/d/e/c/ dd/e/ |1"D" fe"G"dB"D" A3 d :|2"D" fe"G"dB"D" A3 z ||  