Compose a musical work that seamlessly incorporates the assigned motif and abides by the given alphabetical pattern.
X:1
L:1/8
M:2/4
K:F
['(fa)(ga) (fg)(fe) (dc)(de)', 'afca bgcb']  
X:1
L:1/8
M:2/4
K:F
 (fa)(ga) | (fg)(fe) | (dc)(de) | fc AF | (fa)(ga) | (fg)(fe) | (dc)(de) | f2 F2 :| afca | bgcb | 
 afca | (g/f/e/d/) (dc) | afca | bgcb | (af)(ge) | f2 z2 :|  