Develop a musical composition by integrating the alphabetically represented musical pattern and the supplied melodic theme.
X:1
L:1/8
M:4/4
K:C
['c G<G G>E G2 c>d e2 d>c', 'g>ag>e f>gf>d e/f/g']  
X:1
L:1/8
M:4/4
K:C
 c | G<G G>E G2 c>d | e2 d>c d<D D>G | E>G G<c A2 ag | e>g d<e c>CC :| e | g>ag>e f>gf>d | 
 e/f/g c>e d<G G>c | A<A A>B A2 a>g | e<gd<e cCCe | g>ag>e f>gf>d | e/f/g c<e d>GG>c | 
 A>GA>c A<a g>e | e<g d>e cCC ||  