Construct a piece of music built on the supplied alphabet sequence and motif.
X:1
L:1/8
Q:1/8=520
M:4/4
K:D
['', 'ABAG FE D2 A,B,CD EDCE', 'A2 EF^GA BAGB']  
X:1
L:1/8
Q:1/8=520
M:4/4
K:D
 de |: f2 e2 d2 B2 | ABAG FE D2 | A,B,CD EDCE | DEFG A2 de | fafe dedB | ABAG FE D2 | 
 A,B,CD EDCE |1 DFE/F/E D2 de :|2 DFE/F/E D2 cd |: [ee]2 [ec]2 [ee]2 [ec]2 | efed cB A2 | 
 EF^GA BAGB | ABcd e2 cd | [ee]2 [ec]2 [ee]2 [ec]2 | efed cB A2 | EF^GA BAGB |1 AcB/c/B A2 cd :|  