Construct musical arrangements that mirror the suggested structure and integrate the offered pattern
X:1
L:1/8
M:4/4
K:Bmin
['d2 f2- (3f2 e2 d2', 'f ed'  
X:1
L:1/8
M:4/4
K:Bmin
|:"_Brian's variation" (3B2 d2 f2- (3f2 e2 d2 | (3B2 d2 f2 e3 d | (3G2 d2 f2- (3f2 e2 d2 | 
 (3:2:4G2 d2 fa e3 d | (3A2 c2 d2 (3d2 c2 B2 | (3A2 c2 d2 d2 d2 | (3e2 d2 B2 (3e2 d2 c2 | B8 :: 
 d3 f ed c2- | cfed c3 f | ed B2- BedB | AAFA d B3 | d3 f ed c2- | cfed c3 f | ed B2- BedB | 
 AAFA d B3 :|  