Compose melodious music utilizing the prescribed letter representation and integrating the given thematic element.
X:1
L:1/8
M:2/2
K:G
['B/c/ dBgB dgBg dBgB aAAB/c/ dBgB bBgB', 'dGGB/c/ dgBg aAAB/c/']  
X:1
L:1/8
M:2/2
K:G
 B/c/ | dBgB dgBg | dBgB aAAB/c/ | dBgB bBgB | eg d/e/d/c/ BGG :| B/c/ | dgBg dGGB/c/ | 
 dgBg aAAB/c/ | dgBg caAc | BdAc BGGB/c/ | DgBg dGGB/c/ | dgBg aAAB/c/ | dbca BgAf | 
 ge d/e/d/c/ BGG ||  