Develop a musical composition using both the specified melodic theme and the alphabetical pattern naming.
X:1
L:1/8
Q:3/8=80
M:3/8
K:Cmin
['B2 c B2 A']  
X:1
L:1/8
Q:3/8=80
M:3/8
K:Cmin
 G>GG | (c B2-) | BBc | B2 c | B2 A | (G/A/4G/4 F2-) | FFF | B2 c | B2 A | (A/B/4A/4 G2-) | 
 G/z/GG | c B2- | BBc | B2 c | B2 A | (G/A/4G/4 F2-) | FFF | B2 c | B2 A | (A/B/4A/4 G2-) | G z2 ||  