Assemble a piece of music by merging the alphabetic representation of the predetermined musical pattern and the provided melodic theme.
X:1
L:1/8
Q:3/8=90
M:6/8
K:C
['e>dc gfe dec BAG cde fge', 'cde efg', 'gfg edc', 'edc dcB']  
X:1
L:1/8
Q:3/8=90
M:6/8
K:C
 e>dc | gfe dec | BAG cde | fge def | e3 :| efg | fge gab | gfe agf | edc BAG | A3 cde | efg cde | 
 edc cde | efg cdB | c3 |: gfg | edc gfg | edc gfe | edc BAB | c3 :| edc | dcB edc | dcB de^f | 
 gba ^fef | g3 fed | e3 cBA | def gfe | dec BAB | c3 |]  