Craft a musical piece that abides by the prescribed structural guidelines and the given theme.
X:1
L:1/8
Q:1/8=120
M:3/8
K:D
['A .A(fe) (dF).A (GE).c df.A (Af).e (dF).A', 'd2 F (GE).c'  
X:1
L:1/8
Q:1/8=120
M:3/8
K:D
 A | .A(fe) | (dF).A | (GE).c | df.A | (Af).e | (dF).A | GE.c | d2 || F | (GE).c | (df).G | 
 (GE).c | d2 F | (GE).c | (df) F | (GE) c | d2 A | (Af).e | dF.A | (GE).c | (df) A | (Af).e | 
 (dF).A | (GE).c | d2 |]  