Develop a piece of music by incorporating the provided motif and following the outlined musical structure represented by alphabet characters.
X:1
L:1/8
M:6/8
K:B
['F F2', 'F F2 B, D2 B,']  
X:1
L:1/8
M:6/8
K:B
 F |"B" F2 D B,2 C | D2 E F2 F | F2 B, D2 B, |"F#7" C3"B" B,2 F | F2 D B,2 C | D2 E F2 F | 
 F2 B, D2 B, |"F#7" C3"B" B,3 ||"B" FGA B2 F |"E" A2 G"B" F3 | FGA B2 F |"E" A2 G"B" F2 F | 
 F2 D B,2 C | D2 E F2 F | F2 B, D2 B, |"F#7" (C3"B" B,2) |]  