Develop a musical composition using both the specified melodic theme and the alphabetical pattern naming.
X:1
L:1/8
M:6/8
K:G
['aea aea', 'dBG A3']  
X:1
L:1/8
M:6/8
K:G
 E |"Am" EAA AGA | Bcd e2 f |"G" gfg ege | dBG G2 E |"Am" EAA AGA | Bcd e2 f |"Em" gfe"G" dBG | 
"Am" A3 A2 :| a |"Am" aea aea | aea b2 a |"G" gfg ege | dBG G2 a |"Am" aea aea | aea b2 a | 
"Em" gfe"G" dBG |"Am" A3 A2 a ||"Am" aea aea | aea b2 a |"G" gfg ege | dBG G2 E |"Am" EAA AGA | 
 Bcd e2 f |"Em" gfe"G" dBG |"Am" A3 A2 |]  