Construct a piece of music built on the supplied alphabet sequence and motif.
X:1
L:1/8
M:3/4
K:Bb
['F (GA) B2 dg fB A2', 'dg fB']  
X:1
L:1/8
M:3/4
K:Bb
 F (GA) |:"Bb" B2 dg fB |"F7" A2 cf ea | A2 cg fA |"Bb" B2 db fb | B2 dg fB |"F7" A2 cf ea | 
 A2 cg fa |1"Bb" b2 z F (GA) :|2"Bb" b2 z d'(c'a) |:"F7" ag ea ge |"Bb" dg fB d2 |"F7" cf eA c2 | 
"Bb" dg fd' c'b |"F7" ag ea ge |"Bb" dg fB d2 |"F7" cf ec' fa |1"Bb" b2 z (d' c'b) :|2 
"Bb" b2 z2 z2 |]  