Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/8
M:4/4
K:G
['dB GA']  
X:1
L:1/8
M:4/4
K:G
 A/B/c |"G" d^c dB GA B/c/d |"C" e^d ec ABc^c |"G" d^c dB GA BG |"D" A/B/A G/F/E"G" D2 A/B/=c | 
"G" d^c dB GA B/c/d |"C" e^d ec ABcA |"G" B2 GB"D" AG FA |"D7" FG GF"G" G2 :| z F | 
"G" GA BG"C" E2 GE |"G" DB, A,B, G,3 A, |"Em" B,3 B, B,A,G,A, |"G" B,2 A,2"D" A,3 F | 
"G" GA BG"C" E2 GE |"G" DB, A,B, G,3 A, |"G" B,D D/D/D DB, G,A, |"Em" B,2"D" A,/B,/A,"G" G,2 :| 
"^Wind instruments play the second part an octave higher" z f |"G" ga bg"C" e2 ge |"G" dB AB G3 A | 
"Em" B3 B BA GA |"G" B2 A2"D" A3 f |"G" ga bg"C" e2 ge |"G" dB AB G3 A |"G" Bd d/d/d dB GA | 
"Em" B2"D" A/B/A"G" G2 :|  