Construct songs that correspond to the indicated chord progressions.
'Ab', 'Eb7', 'Ab', 'A', 'Ab', 'Eb7', 'Ab', 'B', 'Eb7', 'Ab', 'Db', 'Ab', 'Ab', 'Db', 'Ab', 'C', 'Db', 'Ab', 'Eb7', 'Ab'  
X:1
L:1/4
M:23/44
K:Ab
"^Intro" |"Ab" [ec]2 [dB] | [cA]2 [AA] |"Eb7" [BG] [FE]/[GD]/ |"Ab" [AC] z ||"A" |: 
"Ab" [ec]2 [dB] | [cA]2 [AE] |"Eb7" [ec] [dB] |"Ab" [cA] [AE] :|"B" |"Eb7" [GB,]2 [AC] | 
 [BD]2 [GB,] |"Ab" [AC]"Db" [dF] |"Ab" [cE]2 |"Ab" [AC]"Db" [dF] |"Ab" [cE]2"C" |: 
"Db" [dF] [dF]/[dF]/ [BD]/[dF]/ |"Ab" [cE]2 [AC] |"Eb7" [BD] [FE]/[GD]/ |"Ab" [AC] z :|  