Assemble a piece of music by merging the alphabetic representation of the predetermined musical pattern and the provided melodic theme.
X:1
L:1/8
Q:1/4=100
M:4/4
K:F#
['B AG']  
X:1
L:1/8
Q:1/4=100
M:4/4
K:F#
 C2 |"F#" C4- CF EF |"G#m" G>D G4 F2 |"C#" E3 F"C#7" G^^F GA |"F#" F4- FC FA | c4- cA FC | 
"B" (E2 D2) z B AG |"F#/C#" F3 A"C#7" G3 C |"F#" F4 z2 C2 |"C#" E3 F G^^F"C#7" GA | 
"F#" (F4 C2) F2 | A3 B cA"G#7" GF |"C#" G6 C2 |"F#" A3 B AG FC |"B" (E2 D2) z B AG | 
"F#/C#" F3 A"C#7" G3 C |"F#" F4 z2 |]  