Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/8
Q:1/8=150
M:2/2
K:D
['d3 e f2', 'A3 F']  
X:1
L:1/8
Q:1/8=150
M:2/2
K:D
"^hornpipe" AG | F2 ED d3 e | f2 e>d c2 BA | B3 A F>EFA | B3 c d2 AG | F2 E>D d3 e | f2 ec dcBA | 
 Bcde fedc | B2 cB/c/ d2 :| ed | c3 B A3 F | ecBc A3 F | A3 B AFEF | A2 AB/c/ d3 A | B>ABd B2 AF | 
 AFAB d3 e | fedc AB/c/dG | F2 E2 D2 :|  