Write a musical work incorporating the specified theme and letter-based framework.
X:1
L:1/8
M:4/4
K:C
['cBAB cAGF', 'eg g2 agfg']  
X:1
L:1/8
M:4/4
K:C
[M:2/2][K:G] added e!p!ea[Q:1/8=180]"^D modal" .cBcd cBAB | cAGF EFGc | Addc defe | dcAG FGAB | 
 cedB cBAB | cAGF EDCE | DEFG ABce | dcAG FD D2 :| eg g2 agfg | efgf ec c2 | ea a2 bgag | 
 eaag (3efg dg | eg g2 agfg | efge defg | afge fdec | dcAG FD D2 :|  