Compose a piece featuring the specified motif and using an alphabet-based arrangement.
X:1
L:1/8
M:4/4
K:A
['', 'af ecBe cAAA BccB ceaf ecBe cAAB', 'a3 f ecBc ecaf', 'cffe f2 ef', 'aefB cffe f2 fg a2 ba f3']  
X:1
L:1/8
M:4/4
K:A
 af |: ecBe cAAA | BccB ceaf | ecBe cAAB | cffe fgaf :| e3 f a3 f | ecBc ecaf | ecea afec | 
 cffe fgaf | ecef a3 f | ecBc ecaf | ecBe cAAB | cffe f2 z2 |]: B3 c A3 B | c2 cB ceaf | 
 ecBe cAAB |1 cffe f2 ef :|2 cffe f2 ef || a2 ef aefa | efae faef | a2 ef aefB | cffe f2 fg | 
 a2 ba f3 f | e f2 e c2 af | ecBe cAAB | cffe fgaf |]  