Compose a piece using the specified musical pattern based on the alphabet and the provided melodic theme.
X:1
L:1/8
M:2/2
K:D
['A2 dB ABAF DFAF E3 G FDFA', 'd2 dB', 'edef g2 gf gbag |1 (3fgf ef']  
X:1
L:1/8
M:2/2
K:D
 A2 dB ABAF | DFAF E3 G | FDFA BG (3Bcd |1 cABc d2 dB :|2 cABc defg |: a2 fd (3fga fd | 
 fafd (3Bcd ef | g3 f gbag |1 fgec defg :|2 fgef d2 dB ||"^Variations:" A2 dB AF F2 | dFAF EDEF | 
 DFAF G2 ed |1 cABc d2 dB :|2 cABc defg |: a2 fd fafd | fafd edef | g2 gf gbag |1 (3fgf ef defg :|2 
 fdec d2 dB ||  