Compose a musical piece using the designated musical pattern's alphabetic representation and the assigned melodic theme.
X:1
L:1/8
Q:1/4=120
M:4/4
K:D
['A d2 fd gefd eA A2 BcBA', 'afdf eA A2']  
X:1
L:1/8
Q:1/4=120
M:4/4
K:D
 A | d2 fd gefd | eA A2 BcBA | d2 fdge fd | fgec d3 ||"^NB1" f/g/ | afde afdf | eA A2 BcBG | 
 afdf afdf | egec d2 fg | afdf afdf | eA A2 BcBA | afge fdec | Bgec d2 |]  