Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
M:2/2
K:Ador
['AB cBcB AGAe edec G2 (3DEF G2', 'efga b2', 'AB cBcB A^GA^d e^deB G2 (3DEF G2', 'efga b2 ag']  
X:1
L:1/8
M:2/2
K:Ador
 AB | cBcB AGAe | edec G2 (3DEF | G2 ge dBAB | G2 E2 E2 :: z B | efga b2 ag | agab g2 ed | 
 efga b2 ag | f2 e2 efga | b2 bg a2 ae | d^cdB ga b2 | B2 AG AcBA | G2 E2 E2 ::"^variations" AB | 
 cBcB A^GA^d | e^deB G2 (3DEF | G2 ge dBAB | G2 E2 E2 :: z B | efga b2 ag | agab g2 eB | 
 efga b2 ag | f2 e2 efga | babg a^gae | d^cdB ga b2 | B2 AG AcBA | G2 E2 E2 :|  