Compose a song based on the given alphabetical pattern and musical motif.
X:1
L:1/8
M:4/4
K:Bb
['D B,2 G>B B,>B c/B/c/d/ fdd>f cd', 'fbb>f cd dB']  
X:1
L:1/8
M:4/4
K:Bb
 D |"Bb" B,2 B/A/B/d/"Eb" cG"F" G>B |"Bb" B,>B c/B/c/d/ fdd>f | 
"Eb" ga/b/"Bb" (g/f/)e/d/"Eb" (e/d/)c/B/"F" cd |"Bb" B,>B"F" (d/c/)B/c/"Bb" dB B :| g | 
"Bb"{g} f>d{d}b>d"Eb" (e/d/)c/B/"F" cd |"Bb" fdb>d fbb>f |"Eb" g>b"Bb" f>d"Cm" (e/d/)c/B/"F" cd | 
"Bb" B,>B"F" (d/c/)B/c/"Bb" dBBg |"Bb"{g} f>d{d}b>d"Eb" (e/d/)c/B/"F" cd |"Bb" fdb>d fbb>f | 
"Eb"{a} gb"Bb" d>f"Cm" (e/d/)c/B/"F"{B} cd |"Bb" B,>B"F" d/c/B/c/"Bb" dB B ||  