Compose a piece of music using the specified letter-based musical form and incorporating the assigned motif.
X:1
L:1/8
M:4/4
K:D
['f2 df', 'faa^g afdf']  
X:1
L:1/8
M:4/4
K:D
 f2 df eB B2 | d3 e fgag | f2 df edBe | dBAF E/F/E D2 | dcdf eB B2 | d3 e fgag | f2 df edBe | 
 dBAF E/F/E D2 || a3 b afdf | afdf afdg | faa^g afdf | gfed B/c/d ea | faa^g afdf | abaf gfga | 
 aggf gfef | g2 gf gbag ||  