Construct a melodic piece using the designated alphabetic pattern and the provided musical theme.
X:1
L:1/8
Q:1/4=100
M:3/8
K:C
['f>gf edc B/c/dB']  
X:1
L:1/8
Q:1/4=100
M:3/8
K:C
"C" GAB |"C" cde |"Dm" fde/f/ |"G" gdB |"C" GAB |"C" cde |"F" f/e/dc |"G" d3 :|"F" f>gf |"C" edc | 
"G" B/c/dB |"C" cde |"F" f>gf |"C" edc |"G" B/c/dB |"C" c3 :|  