Craft a musical composition with the supplied motif and conforming to the necessary format.
X:1
L:1/8
Q:1/8=90
M:4/4
K:Amin
['ABcd e2 a2', 'A4 AB (3cBA BcdB G2 Bc dB'  
X:1
L:1/8
Q:1/8=90
M:4/4
K:Amin
|: ABcd e2 a2 | gage dBGB | ABcd e2 a2 | g2 ^f2 e4 | ABcd e2 a2 | gage dBGB | g2 ge dBAG | 
 EGAB A4 :: AB (3cBA BcdB | G2 Bc dB (G2 | G3) B cBAG | EGAB A4 | AB (3cBA BcdB | G2 Bc dB G2 | 
 g3 e dBAG | EGAB A4 :|  