Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
Q:1/4=120
M:6/8
K:Emin
['A!>(!DG F>!>)!ED', 'g>!<)!fe dA!>(!d F7/4!>)!E/4D E>!<(!FA B!<)!Ad |!>(! B>A!>)!F']  
X:1
L:1/8
Q:1/4=120
M:6/8
K:Emin
"^Slow." B, |!p! E>FA!<(! BA!<)!d | A!>(!DG F>!>)!ED |!p! E>F!p!A BAd | B!>(!AF!>)! E2 B,B, | 
!f! E>F!<(!A B!<)!Ad | A!>(!DG F>!>)!ED | E>FA!f! BAd |!p! BAF E3 |]!pp! eB(e/f/) g>fe | 
 dAd F>ED/D/ |!f! eB(e/f/) g>fe | Be^d e2 B | eB!<(!e/f/ g>!<)!fe | dA!>(!d F7/4!>)!E/4D | 
 E>!<(!FA B!<)!Ad |!>(! B>A!>)!F E3 |]  