Develop a musical composition incorporating the given motif while adhering to the outlined alphabetical form.
X:1
L:1/8
M:4/4
K:Dmix
['AD (3DED', '(3ABc dB', 'fdde d2', 'fdec dBAG FD (3DEF A2']  
X:1
L:1/8
M:4/4
K:Dmix
 B | AD (3DED AGFD | AD (3DED A2 (3dcB | AD (3DED AGFD | Ec (3Bcd G2 FE :| (3ABc dB AGFG | 
 (3ABc dB A2 GF | (3ABc dB AGFD | Ec (3Bcd G2 FE | (3ABc dB AGFG | (3ABc dB A2 (3ABc | dBcA BGAF | 
 Ec (3Bcd G2 Eg || fdde d2 dg | fddf abag | fdde d2 ef | gagf efge :| fdec dBAG | FD (3DEF A2 Ag | 
 fdec dBAF | Ec (3Bcd G2 Eg | fdec dBAG | FD (3DEF A2 (3ABc | dBcA BGAF | Ec (3Bcd G2 FE ||  