Compose a musical piece by integrating the alphabetic representation of the specified sequence and the provided motif.
X:1
L:1/8
M:4/4
K:G
['G2 GB dBBd |{ef}', 'eg dBgB AA Aa |{ga} b2 gd']  
X:1
L:1/8
M:4/4
K:G
 G2 GB dBBd |{ef} d2 GB dBBg | G2 GB dBBd |{ef} g2 dB AA A z ::{ga} b2 gd e2 eg | dgBg dgBg | 
 b/a/g/f/ gd e2 eg | dBgB AA Aa |{ga} b2 gd e2 eg | dgBg dgBg | b/a/g/f/ gd efge | dBgB AAAB |]  