Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/8
M:3/4
K:A
['(3aga b<g af f2 e<c Ac (3cBc']  
X:1
L:1/8
M:3/4
K:A
|:"D" (3aga b<g af |"A" f2 e<c Ac |"E" (3cBc d<B GB |"A" BA A<c e2 |"D" (3aga b<g af | 
"A" f2 e<c Ac |"E" (3cBc d<B GB |"A" BA A4 ::"A" E>A c2 c2 |"D" c>d [df]2 [df]2 |"E" [df]>g g2 g2 | 
"A" (3gfg a2 gf |"A" e>d c2 c2 |"D" c>d [df]2 [df]2 |"E" f2 g<a bg |"A"{g} a2 a4 :: 
"A" c2 ec (3ABc |"Bm" d2 fd Ba |"E" g2 bg (3efg |"A" a2 c'a ed |"A" c2 ec (3ABc |"Bm" d2 fd Ba | 
"E" g2 bg (3efg |"A" a2 a4 :|  