Create a musical composition adhering to the provided thematic and alphabetical guidelines.
X:1
L:1/8
M:6/8
K:Bmin
['B2 f dBf', 'gag fed ecA GAB cde Bcd efg']  
X:1
L:1/8
M:6/8
K:Bmin
 B2 f dBf | dBf cAF | B2 f dBf | Bcd cde | B2 f dBf | dBf cAF | GAB cde | fec B2 |1 A :|2 F |]: 
 GAB cde | Bcd efg | aAA gag | fed ecA | GAB cde | Bcd efg | aAA gag | fdc d3 :|  