Write a musical work incorporating the specified theme and letter-based framework.
X:1
L:1/8
M:4/4
K:Ab
['c2 c2 AF E4 A2 z2 B2']  
X:1
L:1/8
M:4/4
K:Ab
"Ab" c2 c2 c>B"Db" AF |"Ab" E4 A2 z2 |"Eb" B2 B2"Ab" c>B Ac |"Eb" B4 z2"Eb7" E>D | 
"Ab" CE A>B A2"Ab7" A>G |"Db" FG A>F"Ab" E2"Eb" c>B |"Ab" AG A>F"Eb" (GA"Eb7" B)c |"Ab" A4 z4 |]  