Compose a piece of music using the specified letter-based musical form and incorporating the assigned motif.
X:1
L:1/8
M:2/4
K:D
['FF/F/ ED FA A2', 'd3 A B2 A2']  
X:1
L:1/8
M:2/4
K:D
 FF/F/ ED | FA A2 | B A2 F | A4 | FF/F/ ED | FA A2 | F F2 E | D4 || d3 A | B2 A2 | B A2 F | A4 | 
 d3 A | B2 A2 | F F2 E | D4 |]  