Compose a musical piece based on the specified chord sequence.
'Db', 'Ab7', 'Db', 'Gb', 'Ab7', 'Db', 'Ab7', 'Db', 'Ab7', 'Db'  
X:1
L:1/8
Q:1/4=100
M:4/4
K:Db
"Db" d2 c>B A3 G |"Ab7" F2 E2"Db" D3 A |"Gb" B3 B"Ab7" c3 c |"Db" d6 d2 | dc BA A>G Fd | 
 dc BA A>G FF | FF FF/G/ A3 G/F/ |"Ab7" EE EE/F/ G3 F/E/ |"Db" D d2 B A>G FG |"Ab7" F2 E2"Db" D4 |]  