Compose a piece of music using the specified letter-based musical form and incorporating the assigned motif.
X:1
L:1/8
Q:1/8=180
M:4/4
K:A
['', 'Acec dB B2 eaaf', '(3cBA eA fAeA']  
X:1
L:1/8
Q:1/8=180
M:4/4
K:A
 e2 fg || a2 ec Acec | Acec dB B2 | eaaf c2 (3ABc | dfed cA A2 | (3aba ec AceA | Acec dB B2 | 
 eaaf e2 (3efg | a2 ba afed || (3cBA eA fAeA | (3cBA ec B2 B2 | (3cBA eA fAeA | dfed A4 | 
 (3cBA eA fAeA | (3cBA ec B2 B2 | Accc defa | gbeg a4 |]  