Develop musical pieces adhering to the provided chord changes.
'A', 'F#m', 'A', 'D', 'A', 'A', 'E7', 'A', 'A', 'A', 'F#m', 'D', 'A', 'A', 'E7', 'A'  
X:1
L:1/8
M:4/4
K:A
 (ef)g |"A" a2 e2 e3 e | fecB A2 (ef)g | a2 f2 e2 c2 |"F#m" f3 g f2 (ef)g |"A" a2 e2 e2 e2 | 
"D" fecB"A" A4 |"A" cBAF"E7" E2 F2 |"A" A6 A2 ::"A" B c2 B c3 A | B2 A4 A2 |"A" B c2 B cB A2 | 
"F#m" F6 E2 |"D" FA- A2 B3 A |"A" Bc- c2 B3 A |"A" cBAF"E7" E2 F2 |"A" A6 A2 :|  