Develop a musical piece using the given motif and adhere to the outlined musical structure.
X:1
L:1/8
M:4/4
K:Bb
['f3 d edcB', 'B6 G2 BGF>G Bcde f2 fd edcB'  
X:1
L:1/8
M:4/4
K:Bb
 de | f3 d edcB | G3 F GABG | F2 G2 B2 cd | e4 d2 e2 | f3 d edcB | G2 GF GABG | F3 G B2 B2 | B6 || 
 G2 | BGF>G Bcde | f2 fd edcB | e3 f gefd | e4 d3 e | f3 d edcB | G2 (GF) GABG | F3 G B2 (B{d}c) | 
 B6 ||  