Compose a musical piece based on the given motif and alphabet representation.
X:1
L:1/8
M:4/4
K:G
['D2 dB', 'dB defg abaf abaf dBAB defg a2']  
X:1
L:1/8
M:4/4
K:G
 D2 dB | AGFE | D2 dB A2 A2 | D2 dB ABde | efed e2 dB || defg abaf | abaf dBAB | defg a2 a2 | 
 bagf e2 dB ||  