Construct a piece of music by converting the stated musical sequence into an alphabetical format and integrating the supplied motif.
X:1
L:1/8
M:2/2
K:G
['Bc dgfa (3gab gd (3efg dc (3Bcd', '(3bag (3fed']  
X:1
L:1/8
M:2/2
K:G
 Bc | dgfa (3gab gd | (3efg dc (3Bcd BG | FGAB cedc | Bcde d2 Bc | dgfa (3gab gd | 
 (3efg dc (3Bcd BG | Fedc BAGF | G2 A2 G2 :: AB | (3cdc (3BAG (3FAc (3edc | 
 (3BAB (3Bdg (3bag (3fed | (3cdc (3BAG (3FAc (3edc | (3Bdg (3bdg (3bag (3fed | 
 (3e^de (3gfg (3c'ba (3gfe | (3BAB (3Bdg (3bag (3fed | (3ced (3cBA (3fed (3cBA | (3GBd (3gdB G2 :|  