Develop musical compositions in alignment with the designated form and the offered musical notion.
X:1
L:1/8
M:2/4
K:D
['B3 A']  
X:1
L:1/8
M:2/4
K:D
 DE | F3 G | A2 F2 | E3 D | D3 D | D2 d2 | c2 d2 | B4 | B2 Bc | d3 d | c2 BA | B3 A | E4 | E2 dc | 
 B3 A | FEFA | B4 | B2 :|  