Compose music pieces conforming to the prescribed pattern and incorporating the provided musical concept.
X:1
L:1/8
Q:1/2=76
M:4/4
K:F
['FGAB cAGF fefd d2 c2 AcAF BdBG', 'egec fafd'  
X:1
L:1/8
Q:1/2=76
M:4/4
K:F
 FGAB cAGF | fefd d2 c2 | AcAF BdBG | AcAF EGEC | FGAB cAGF | fefd d2 c2 | AcAF BdBG | 
 (F2 E2) F4 :: cdef egec | fafd egec | cdef gecB | AcAF EGEC | AcAF BdBG | egec fafd | cfed cBAG | 
 (F2 E2) F4 :|  