Compose a piece using the specified musical pattern based on the alphabet and the provided melodic theme.
X:1
L:1/8
M:4/4
K:C
['c2 e<c gc e>d e>a']  
X:1
L:1/8
M:4/4
K:C
{B} c2 GG9/4E/E/ G>G E>E D>a | a>g e>d |{B} c2 G>G E>a a>a g>e |1{e} d2 dd e>d :|2 
{e} [Dd]2{c} [G,G]2 |:{B} c2 e<c gc e>d | e>a aa g>e d>e |{e} c2 e<c gc e>d | e>a ge{e} d2 |1 
 B<G :|2{e} dd ed ||  