Craft musical creations that incorporate the designated chord alterations.
'G', 'C', 'G', 'C', 'Am', 'Fm', 'G', 'C', 'G', 'C', 'F', 'C', 'G', 'Am', 'F', 'G', 'C'  
X:1
L:1/16
M:none
K:C
|:"G" G2 A2G"C" cB A2G |"G" GA GF EF"C" G2C |"Am" EF G2A"Fm" F2 E2D |1"G" DE DC"C" C2 EFG :|2 
"G" DE DC"C" C2 C3 |:"F" EF FE"C" EF G3 |"G" GF FE FE D2{ED}C |"Am" C2 D2{ED}C"F" F2 E2{FE}D | 
"G" DE DC"C" C2 C3 :|  