Compose a musical piece in accordance with the outlined theme and structure.
X:1
L:1/8
Q:3/8=90
M:9/8
K:F
['f3 c2 a gec dfd cBA G3', 'c3 f3 cf_e dcB def gfg e3'  
X:1
L:1/8
Q:3/8=90
M:9/8
K:F
 f3 c2 a gec | dfd cBA G3 | FAc faf gec | def Gc=B c3 |: f3 cf_e dcB | def gfg e3 | f3 gab agf | 
 egc def gfe | f3 f3 cAc | d3 d3 BGB | c3 ABc dge | fcB ABG F3 |]  