Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/16
M:2/4
K:Dphr
['z2 gg .g2.g2 .g2.g2.g2.g2 .g2.g2 g2>f2', 'f4 z2 bb bb2a', 'fegf feed']  
X:1
L:1/16
M:2/4
K:Dphr
 z2 gg .g2.g2 | .g2.g2.g2.g2 | .g2.g2 g2>f2 | fegf f4 :| z2 bb bb2a | aa2g gg2f |: fegf feed | 
 d2>B2 de.f2 | fegf feed | d8 | fegf feed | d2>B2 de.f2 | fegf feed | d8 :|  