Compose a musical piece using the designated musical pattern's alphabetic representation and the assigned melodic theme.
X:1
L:1/8
M:4/4
K:C
['dGGB dGBd eBdB', 'G2 Bd', 'cFAc dAcA', 'fgaf d2']  
X:1
L:1/8
M:4/4
K:C
[M:4/4][K:G] fa f e[Q:1/8=180] .dGGB d2 Bd | eBdB AGEB | dGGB dGBd | eBdB A2 GB | dGGB dGBd | 
 eBdB AGEB | dGBG dGBd | eBdB AcBA || G2 Bd gabg | e2 dB AGED | G2 Bd gabg | e2 da g3 e | 
 geda gabg | e2 dB AGED | G2 Bd gagf | edef g4 |][K:F]"^Source version" cFFA c2 Ac | dAcA GFDA | 
 cFFA cFAc | dAcA G2 FA | cFFA cFAc | dAcA GFDA | cFAF cFAc | dAcA GBAG || F2 Ac fgaf | 
 d2 cA GFDC | F2 Ac fgaf | d2 cg f3 d | fdcg fgaf | d2 cA GFDC | F2 Ac fgfe | dcde f4 |]  