Using the provided alphabet sequence and motif, develop a unique musical composition.
X:1
L:1/8
M:2/4
K:Emin
['B, EF GA GF ED FD', 'E BB FG AG FF GF EE']  
X:1
L:1/8
M:2/4
K:Emin
 B, |"Em" EF GA | GF ED | EE"Am" FD |"Em" E3 B, || EF GA |"C" GF ED | EE"Am" FD |"Em" E3 E || 
"G" BB FG |"Am" AG FF |"Em" GF EE |"Am" FE"Bm" ED ||"Em" B,E E2 |"Bm" DC B,2 |"Em" E2"Bm" DB, | 
"Em" E2 EF ||"C" GA"B" BB, |"Em" E4- | E2 z |]  