Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/8
M:3/4
K:Dmin
['a>a a>a', '(e2 (3e)fg']  
X:1
L:1/8
M:3/4
K:Dmin
{f} a>a a>a a>a | f/e/f/g/ a2 f2 |{f} g>a ba gf | (3efe d>e fg |{g} a>a a>a a>a | f/e/f/g/ a2 f2 | 
{f} g>a ba gf | ef/e/ d4 :: e>f d>^c Ac | d>e fg/f/ (e2 | (3e)fg a>f d>f | e>d (3^cdc A2 | 
 e>f d^c A>c | d>e fg/f/ (e2 | (3e)fg af e>c | (3^cBc d4 :|  