Design a tuneful piece that utilizes the given musical sequence as a key element.
'Binary', 'Sectional: Verse/Chorus'  
X:1
L:1/8
Q:1/4=112
M:9/8
K:D
"^Allegretto" DDD DBG FAF | DDD DBG Acd | DDD DBG FAF | GEG =cA/B/c/A/ GEC :: dcd DdB AGF | 
 dcd dfa gfe | fdf edc dcB | AGF =cA/B/c/A/ BGE :|  