Compose a musical piece that incorporates the given motif and adheres to the specified form.
X:1
L:1/8
M:6/8
K:G
['BGB dBG', 'ded cAG FGA', 'dBG cAG FGA'  
X:1
L:1/8
M:6/8
K:G
 d | BGB dBG | cAG FGA | BGB dBG | cAF G2 A |"^5" BGB BGB | AFA AFA | def gdB | cAF G2 || A | 
"^9" GBd ded | cAG FGA | GBd GBd | cAF G2 d |"^13" G2 d ded | cAG FGA | def gdB | cAF G2 || A | 
"^17" BGB dBG | cAG FGA | BGG dBG | cAF G2 A |"^21" BGB dBG | cAG FGA | d2 e fdB | cAF G3 |]  