Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/8
M:4/4
K:Bb
['d>ed<B f>gf<d g>a b2', 'B4 f<dTcB (BA)(ce) (d3/2e/4f/4) ed Td2 c2', 'AcFA Bdbg fedc dfAc Bdbg afge f2', 'Acfa bgaf ge c2 dBAG fcAF BdEG', 'DFBd cAGF EG A,2 B,/A,/C FC DGBG', 'Acfc BdcB AG F2 BcdB Acfa bgfe']  
X:1
L:1/8
M:4/4
K:Bb
|: B>cB>F d>ed<B | f>gf<d g>a b2 | f<d(TcB) g>abf | (e<c)(d<B) (B3/2c/4d/4) c2 | B>cB<F d>ed<B | 
 f>gf<d g>a b2 | f<dc<B g>abf | f<dc>d B4 :: f<dTcB (BA)(ce) | (d3/2e/4f/4) ed Td2 c2 | 
 f<d(TcB) BAce | (d/B/f/d/) bd (Td2 c2) | B2 (B/c/B/c/) d<B B2 | d2 (d/e/d/e/) f<d d2 | 
 f>gfd (g>abg) | f<dc>d B4 ::[M:2/2][K:F] facf AcFA | Bdbg fedc | dfAc Bdbg | afge f2 f2 :: 
 gedc Acfa | bgaf ge c2 | dBAG fcAF | BdEG F2 F2 :: A,CFC DFBd | cAGF EG A,2 | B,/A,/C FC DGBG | 
 AFGE F2 F2 :: GABG Acfc | BdcB AG F2 | BcdB Acfa | bgfe f2 f2 :|  