Compose a piece of music using the provided motif and follow the designated alphabet character structure.
X:1
L:1/8
M:6/8
K:Bb
['f=ef d2 d', 'b2 b bag', 'c3({c} BAB) .d(dc) .G(gf) .c(dB) .d(gf) g2']  
X:1
L:1/8
M:6/8
K:Bb
 F | B3 d3 | f3- fdB | c2 c cAF | B3 f=ef | d2 d _ede | f3 f=ef | d2 d cBc | B3 z |] !fermata!Bdf | 
 b2 b bag | f3 fcd | ecd ecf | d3 Bdf | b2 b bag | =efg cde | f3 agf | =efg cA"^D.C."B |] 
!pp! c3({c} BAB) |"_dim..." .c(f=e)"_dim..." .d(dc) |"_dim..." .B(BA)"_dim..." .G(gf) | 
"_dim..." =e(ge)"_dim..." .c(dB) |"_dim..." .A(f=e)"_dim..." .d(gf) | 
({ef}"_dim..." g2 =e)({fg}"_dim..." a2 f) |{ga}"_dim..." b2 g"_dim..." =efg | fgf _ed"^D.C."c |]  