Craft a musical arrangement that integrates the provided motif and upholds the required musical structure.
X:1
L:1/8
M:2/4
K:D
['a/g/ fbea d>efa gb/a/ (g/f/e/d/) (c/d/e/c/) Aa/g/', 'gb/g/ b/g/b/g/ fa/f/ a/f/a/f/'  
X:1
L:1/8
M:2/4
K:D
 a/g/ | fbea | d>efa | gb/a/ (g/f/e/d/) | (c/d/e/c/) Aa/g/ | fbea | defa | bgec | ddd :: ff/f/ ff | 
 fe e2 | gg/g/ gg | gf f2 | gb/g/ b/g/b/g/ | fa/f/ a/f/a/f/ | gfec | dd d2 | d'd'/d'/ d'd' | 
 d'c' c'2 | bb/b/ bb | ba a2 | gb/g/ b/g/b/g/ | fa/f/ a/f/a/f/ | bgec | ddd ||  