Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/8
M:2/4
K:G
['D>E G2']  
X:1
L:1/8
M:2/4
K:G
 dB/B/B/A/G | AB/A/GE | E>BAG | G E3 | dBB/A/G | A>BA/G/E | D4 | d>BB/A/G | A>BAG/E/ | D E3 | 
 G G2 B | AB/A/ED | D>E G2 | A>GE/D/E | D4 | D>E G2 | B>BAG/E/ | D E3 | G G2 B | AB/A/ED | D>E G2 | 
 A>GE/D/E | D4 |]  