Develop a musical composition centered around the provided motif while maintaining the appropriate form.
X:1
L:1/8
M:4/4
K:A
['a2 f2 ed c2'  
X:1
L:1/8
M:4/4
K:A
|: eg |"A" a2 ag"D" f2 ed |"A" c2 ec"E7" dBAG |"Bm" FAED"A/C#" CEAB |"D" cAdc"E" B2 eg | 
"A" a2 ag"D" f2 ed |"A" c2 ec"E7" dBGE |"Bm" DFED"A/C#" CEAB |"E7" cABG"A" A2 :: AB | 
"A" c2 cA EAAB | c2 cA EAAB |"F#m" cAFA cAFA |"Bm" dBfe"E" e2 fg |"A" a2 ag"D" f2 ed | 
"A" c2 ec"E" dBGE |"Bm" DFED"A/C#" CEAB |"E7" cABG"A" A2 :|  