Develop a musical composition based on the provided pattern of letters and incorporating the given motif within it.
X:1
L:1/8
M:2/2
K:Amin
['C2 A,2']  
X:1
L:1/8
M:2/2
K:Amin
"Am" A, C2 A,2 A, CD |"Am/G" E2 G2 EDCB, |"Am/F" A, C2 A,2 A, CD |"E7" E2 ^G2 AGEG |"F" AcAG EDCD | 
"C" EDCD E2 ^F2 |"D" G2 ^F2 EDCD |1"E7" ED C2 A,2 E2 :|2"E7" ED C2"Am" A,2 A2 |:"Am" c A2 A3 z F | 
"C" EFED EFEA |"F" c A2 A3 z F |"E7" ED C2 A,2 A2 |"Dm7" c A2 A3 z F |"C" EDCD E2 ^F2 | 
"D" G2 ^F2 EDCD |1"E7" ED C2 A,2 A2 :|2"E7" ED C2"Am" A,2 z2 |]  