Develop a musical composition using both the specified melodic theme and the alphabetical pattern naming.
X:1
L:1/16
M:2/4
K:Bb
['|{^c} d2 d4 d2', 'B2d2B2d2 edcB A4']  
X:1
L:1/16
M:2/4
K:Bb
{^c} d4{c} c4 | dedc (B2G2) | G2G2 A2A2 | BcBA G4 |{^f} g4{f} g4 | g_agf (e2c2) | c2c2 d2d2 | 
 efed c4 |{^c} d2 d4 d2 | dgdg d4 |{^c} d2 d4 d2 | dedc BAG2 | gdgd ^f4 | eBeB d4 | cdec BcdB | 
 AcBA G2 z2 || !fermata!d2f2d2f2 | gfed c4 | B2d2B2d2 | edcB A4 | gbgb f4 | gbgb f4 | cdcd c2b2 | 
 abc'a f4 | d2f2d2f2 | gfed c4 | B2d2B2d2 | edcB A4 | G^FGA BABc | d^cde f4 | fgfd BcdB | 
 cFGA B2 z2!D.C.! ||  