Develop a musical composition based on the provided pattern of letters and incorporating the given motif within it.
X:1
L:1/8
Q:1/4=200
M:4/4
K:Bmin
['Bc d2 A2 FA df e2 c2', 'AG Fd AF dA FA Gd BG']  
X:1
L:1/8
Q:1/4=200
M:4/4
K:Bmin
 A Bc | d2 A2 FA df | e2 c2 Ac eg | ff df ee ce | de fd AA Bc | d2 A2 FA df | e2 c2 Ac eg | 
 ff df ee ce | df ec d :: B AG | Fd AF dA FA | Gd BG dB GB | Ae cA ec Ac | df ed cB AG | 
 Fd AF dA FA | Gd BG dB GB | Ae cA ec Ac | df ec d :|  