Develop musical pieces based on the specified chord pattern.
'Db', 'Ab', 'Ab7', 'Db', 'Bbm', 'Eb7', 'Ab', 'Db', 'Ab', 'Ab7', 'Db', 'Db', 'Ab7', 'Db', 'Ab', 'Ab7', 'Db', 'Ab', 'Ab7', 'Db'  
X:1
L:1/8
Q:1/4=100
M:3/4
K:Db
"Db" (A3 B) AG | (F3 A,) DG |"Ab" (F3 E)"Ab7" A,E |"Db" D6 | (d3 e) fd | (A3 B) AD | 
"Bbm" (F3 D)"Eb7" FE |"Ab" E !fermata!A3 z2 |"Db" (A3 B) AG | (F3 A,) DG |"Ab" (F3 E)"Ab7" A,E | 
"Db" D6 | (d3 e) fd | (A3 B) AD | (F3 E) A,E | D6 |:"Db" (A3 B) AB |"Ab7" (A3 B) AB | 
"Db" (A3 d) Ad |"Ab" (e2"Ab7" A4) |"Db" (f3 e) dF | (A3 B) AD |"Ab" (F3 E)"Ab7" A,E |"Db" D6 :|  