Develop a musical composition using the alphabetic representation of the specified sequence and incorporating the given motif.
X:1
L:1/8
M:3/4
K:A
['a2 AAAA e2 EEEE d2 c2 B2', 'e6 b2 g2 e2 bc d4 cdefga', 'A6 DEDE F2 FGFG A2 GD (3Bcd', 'B2 BcdB']  
X:1
L:1/8
M:3/4
K:A
 a2 AAAA | e2 EEEE | d2 c2 B2 | cABG A2 | a2 f2 e2 | ^dB a4 | bagfe^d | e6 :: b2 g2 e2 | bc d4 | 
 cdefga | (3cBA B4 | (ag)(gf)(fe) | (ed)(dc)(cB) | BdcBAG | A6 :| 
[K:D][M:3/4]"^Trio" !fermata!D2 DEDE | F2 FGFG | A2 GD (3Bcd | B4 FG | A2 FD (3Bcd | A2 GFED | 
 EF G2 F2 | E6 :: E2 EFGE | F6 | B2 BcdB |"^ais" _c"^h"=B"^cis"c"^ais"_c F2 | B2 BcdB | c2 cdec | 
 dc B2 ^A2 | B6 | d2 ef A2 | B4 B2 | e2 efge | c2 Bc A2 | d2 defd | e2 ef g2 | fe d2 c2 | d6 :|  