Compose a musical piece using the designated musical pattern's alphabetic representation and the assigned melodic theme.
X:1
L:1/8
M:4/4
K:F
['AB c2']  
X:1
L:1/8
M:4/4
K:F
 F2 G2 AB c2 | d2 cdef c2 | dcBdcA F2 | B2 AA G4 | G2 A2 Gc c2 | =Bc d2 cd e2 | f2 ed c2 Bc | 
 E2 FF G4 | G2 ce G2 Ac | c2 =BB c4 | EF G2 FG A2 | GA B2 AB c2 | A2 B2 c2 d2 | cdcd c4 | 
 cdcd c2 BA | A2 GG F4 |]  