Develop musical pieces that incorporate the given motif and follow the specified structure.
X:1
L:1/8
Q:1/8=300
M:4/4
K:A
['f2 e>c', 'e<Ae>c A/A/A e>f'  
X:1
L:1/8
Q:1/8=300
M:4/4
K:A
 a | f2 e>c e<fa<e | f2 e>c f>BB<g | f2 e>c e<f=g>e | f>ae>c e>AA<b | f2 e>c e>fa<e | 
 f2 e>c f>BB<g | f2 e>c e>f=g<e | f>ae>c e>AA || | b | e<Ae>c A/A/A e>f | e<Ae>c f>BB>b | 
 e<Ae>c e<f=g<e | f>ae>c e>AA>b | e<Ae>c A/A/A e>f | e>fe>c f>BB>=g | f2 e>c e>f=g<e | 
 f>ae>c e>AA |]  