Develop a musical composition based on the provided pattern of letters and incorporating the given motif within it.
X:1
L:1/8
M:7/8
K:Dmin
['D3 G2 FG A4 BAG G2 GFEDE', 'G3 GGFG A2 G F2 EC D3']  
X:1
L:1/8
M:7/8
K:Dmin
|: D3 G2 FG | A4 BAG | G2 GFEDE | F5ED | F2 E D4 :| G3 GGFG | A2 G F2 EC | D3 A2 AG | GFGFE D2 | 
 E2 GFGEC | D5 z2 | G3 GGFG | A2 G F2 EC | D3 A2 AG | GFGFE D2 | E2 GFGEC | D4 BAG | F2 EDCDE | 
 F2 GABAG | FEGFGEC | D3 z4 ||  